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31325114125 = 53250600913
BaseRepresentation
bin11101001011000111…
…110100111100001101
32222212002201200020001
4131023013310330031
51003123212123000
622220205524301
72156160035224
oct351307647415
988762650201
1031325114125
1112315234978
1260a2873691
132c52a841b6
141732425cbb
15c3512a46a
hex74b1f4f0d

31325114125 has 8 divisors (see below), whose sum is σ = 39093742584. Its totient is φ = 25060091200.

The previous prime is 31325114071. The next prime is 31325114129. The reversal of 31325114125 is 52141152313.

It can be written as a sum of positive squares in 4 ways, for example, as 214856964 + 31110257161 = 14658^2 + 176381^2 .

It is not a de Polignac number, because 31325114125 - 221 = 31323016973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31325114093 and 31325114102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31325114129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125300332 + ... + 125300581.

It is an arithmetic number, because the mean of its divisors is an integer number (4886717823).

Almost surely, 231325114125 is an apocalyptic number.

It is an amenable number.

31325114125 is a deficient number, since it is larger than the sum of its proper divisors (7768628459).

31325114125 is an equidigital number, since it uses as much as digits as its factorization.

31325114125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250600928 (or 250600918 counting only the distinct ones).

The product of its digits is 3600, while the sum is 28.

Adding to 31325114125 its reverse (52141152313), we get a palindrome (83466266438).

The spelling of 31325114125 in words is "thirty-one billion, three hundred twenty-five million, one hundred fourteen thousand, one hundred twenty-five".

Divisors: 1 5 25 125 250600913 1253004565 6265022825 31325114125