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31044201325 = 521241768053
BaseRepresentation
bin11100111010011000…
…001110101101101101
32222010112010211022021
4130322120032231231
51002034303420300
622132252550141
72146206233404
oct347230165555
988115124267
1031044201325
1112190707a35
126024782351
132c0980a1c7
141706dc063b
15c1a63bd1a
hex73a60eb6d

31044201325 has 6 divisors (see below), whose sum is σ = 38494809674. Its totient is φ = 24835361040.

The previous prime is 31044201311. The next prime is 31044201359. The reversal of 31044201325 is 52310244013.

It can be written as a sum of positive squares in 3 ways, for example, as 98465929 + 30945735396 = 9923^2 + 175914^2 .

It is not a de Polignac number, because 31044201325 - 27 = 31044201197 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 1241768053 = 31044201325 / (3 + 1 + 0 + 4 + 4 + 2 + 0 + 1 + 3 + 2 + 5).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31044201325.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 620884002 + ... + 620884051.

Almost surely, 231044201325 is an apocalyptic number.

It is an amenable number.

31044201325 is a deficient number, since it is larger than the sum of its proper divisors (7450608349).

31044201325 is a wasteful number, since it uses less digits than its factorization.

31044201325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1241768063 (or 1241768058 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 31044201325 its reverse (52310244013), we get a palindrome (83354445338).

The spelling of 31044201325 in words is "thirty-one billion, forty-four million, two hundred one thousand, three hundred twenty-five".

Divisors: 1 5 25 1241768053 6208840265 31044201325