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31200344204 = 227800086051
BaseRepresentation
bin11101000011101011…
…110111100010001100
32222112101221201001212
4131003223313202030
51002344242003304
622155551353552
72153113356431
oct350353674214
988471851055
1031200344204
1112260865437
126068b228b8
132c32c7a143
14171da27b88
15c291d166e
hex743af788c

31200344204 has 6 divisors (see below), whose sum is σ = 54600602364. Its totient is φ = 15600172100.

The previous prime is 31200344177. The next prime is 31200344213. The reversal of 31200344204 is 40244300213.

It is a super-2 number, since 2×312003442042 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31200344204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3900043022 + ... + 3900043029.

It is an arithmetic number, because the mean of its divisors is an integer number (9100100394).

Almost surely, 231200344204 is an apocalyptic number.

It is an amenable number.

31200344204 is a deficient number, since it is larger than the sum of its proper divisors (23400258160).

31200344204 is a wasteful number, since it uses less digits than its factorization.

31200344204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7800086055 (or 7800086053 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 31200344204 its reverse (40244300213), we get a palindrome (71444644417).

The spelling of 31200344204 in words is "thirty-one billion, two hundred million, three hundred forty-four thousand, two hundred four".

Divisors: 1 2 4 7800086051 15600172102 31200344204