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31144410203100 = 22352374111682511
BaseRepresentation
bin1110001010011010111111…
…00000011100001111011100
311002021101011111101121000220
413011031133200130033130
513040232223002444400
6150123313341321340
76363052342536435
oct705153740341734
9132241144347026
1031144410203100
119a182a7698a37
1235abbb3b66250
13144bb9cb92bbc
1479957ca3448c
1539020e5137a0
hex1c535f81c3dc

31144410203100 has 144 divisors (see below), whose sum is σ = 92569244522496. Its totient is φ = 8078734368000.

The previous prime is 31144410203041. The next prime is 31144410203113. The reversal of 31144410203100 is 130201444113.

It is a super-2 number, since 2×311444102031002 (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 45290845 + ... + 45973355.

Almost surely, 231144410203100 is an apocalyptic number.

31144410203100 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31144410203100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46284622261248).

31144410203100 is an abundant number, since it is smaller than the sum of its proper divisors (61424834319396).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31144410203100 is a wasteful number, since it uses less digits than its factorization.

31144410203100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686676 (or 686669 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 31144410203100 its reverse (130201444113), we get a palindrome (31274611647213).

The spelling of 31144410203100 in words is "thirty-one trillion, one hundred forty-four billion, four hundred ten million, two hundred three thousand, one hundred".

Divisors: 1 2 3 4 5 6 10 12 15 20 25 30 37 50 60 74 75 100 111 148 150 185 222 300 370 444 555 740 925 1110 1850 2220 2775 3700 4111 5550 8222 11100 12333 16444 20555 24666 41110 49332 61665 82220 102775 123330 152107 205550 246660 304214 308325 411100 456321 608428 616650 682511 760535 912642 1233300 1365022 1521070 1825284 2047533 2281605 2730044 3042140 3412555 3802675 4095066 4563210 6825110 7605350 8190132 9126420 10237665 11408025 13650220 15210700 17062775 20475330 22816050 25252907 34125550 40950660 45632100 50505814 51188325 68251100 75758721 101011628 102376650 126264535 151517442 204753300 252529070 303034884 378793605 505058140 631322675 757587210 1262645350 1515174420 1893968025 2525290700 2805802721 3787936050 5611605442 7575872100 8417408163 11223210884 14029013605 16834816326 28058027210 33669632652 42087040815 56116054420 70145068025 84174081630 103814700677 140290136050 168348163260 207629401354 210435204075 280580272100 311444102031 415258802708 420870408150 519073503385 622888204062 841740816300 1038147006770 1245776408124 1557220510155 2076294013540 2595367516925 3114441020310 5190735033850 6228882040620 7786102550775 10381470067700 15572205101550 31144410203100