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31200200101304 = 23131731569263613
BaseRepresentation
bin1110001100000010111001…
…10110000000110110111000
311002110201011120221001211222
413012001130312000312320
513042141002211220204
6150205101332411212
76400066021051043
oct706013466006670
9132421146831758
1031200200101304
119a39a2662a223
1235ba983a76b08
1314542213183a0
1479c1522c1c5a
153918c733dabe
hex1c605cd80db8

31200200101304 has 64 divisors (see below), whose sum is σ = 68858126749440. Its totient is φ = 13115833620480.

The previous prime is 31200200101289. The next prime is 31200200101307. The reversal of 31200200101304 is 40310100200213.

It is a super-2 number, since 2×312002001013042 (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31200200101307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 284576999 + ... + 284686614.

It is an arithmetic number, because the mean of its divisors is an integer number (1075908230460).

Almost surely, 231200200101304 is an apocalyptic number.

31200200101304 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

31200200101304 is an abundant number, since it is smaller than the sum of its proper divisors (37657926648136).

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

31200200101304 is a wasteful number, since it uses less digits than its factorization.

31200200101304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569263680 (or 569263676 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 31200200101304 its reverse (40310100200213), we get a palindrome (71510300301517).

The spelling of 31200200101304 in words is "thirty-one trillion, two hundred billion, two hundred million, one hundred one thousand, three hundred four".

Divisors: 1 2 4 8 13 17 26 31 34 52 62 68 104 124 136 221 248 403 442 527 806 884 1054 1612 1768 2108 3224 4216 6851 13702 27404 54808 569263613 1138527226 2277054452 4554108904 7400426969 9677481421 14800853938 17647172003 19354962842 29601707876 35294344006 38709925684 59203415752 70588688012 77419851368 125807258473 141177376024 229413236039 251614516946 300001924051 458826472078 503229033892 600003848102 917652944156 1006458067784 1200007696204 1835305888312 2400015392408 3900025012663 7800050025326 15600100050652 31200200101304