Search a number
-
+
20013100123310 = 2572315527800573
BaseRepresentation
bin1001000110011101010011…
…01110010100010010101110
32121212020022100122201110222
410203032221232110102232
510110343312112421220
6110321520303131342
74133620164154130
oct443165156242256
977766270581428
1020013100123310
116416565308628
1222b280a8a3b52
13b222c53403a8
144d28d400b050
1524a8beeb3e25
hex1233a9b944ae

20013100123310 has 64 divisors (see below), whose sum is σ = 42962617976832. Its totient is φ = 6562871500416.

The previous prime is 20013100123309. The next prime is 20013100123349. The reversal of 20013100123310 is 1332100131002.

It is a super-2 number, since 2×200131001233102 (a number of 27 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 31 ways as a sum of consecutive naturals, for example, 24598184 + ... + 25398756.

It is an arithmetic number, because the mean of its divisors is an integer number (671290905888).

Almost surely, 220013100123310 is an apocalyptic number.

20013100123310 is an abundant number, since it is smaller than the sum of its proper divisors (22949517853522).

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

20013100123310 is a wasteful number, since it uses less digits than its factorization.

20013100123310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816137.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 20013100123310 its reverse (1332100131002), we get a palindrome (21345200254312).

The spelling of 20013100123310 in words is "twenty trillion, thirteen billion, one hundred million, one hundred twenty-three thousand, three hundred ten".

Divisors: 1 2 5 7 10 14 23 35 46 70 115 161 230 322 805 1610 15527 31054 77635 108689 155270 217378 357121 543445 714242 800573 1086890 1601146 1785605 2499847 3571210 4002865 4999694 5604011 8005730 11208022 12499235 18413179 24998470 28020055 36826358 56040110 92065895 128892253 184131790 257784506 644461265 1288922530 12430496971 24860993942 62152484855 87013478797 124304969710 174026957594 285901430333 435067393985 571802860666 870134787970 1429507151665 2001310012331 2859014303330 4002620024662 10006550061655 20013100123310