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31452425412 = 2232621035451
BaseRepresentation
bin11101010010101101…
…011110110011000100
310000011222021202110220
4131102231132303010
51003403310103122
622240554344340
72162264130162
oct352255366304
9100158252426
1031452425412
111238008a811
12611942b0b0
132c7326ac15
1417452c6232
15c413c725c
hex752b5ecc4

31452425412 has 12 divisors (see below), whose sum is σ = 73388992656. Its totient is φ = 10484141800.

The previous prime is 31452425383. The next prime is 31452425413. The reversal of 31452425412 is 21452425413.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (31452425413) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 1310517714 + ... + 1310517737.

It is an arithmetic number, because the mean of its divisors is an integer number (6115749388).

Almost surely, 231452425412 is an apocalyptic number.

It is an amenable number.

31452425412 is an abundant number, since it is smaller than the sum of its proper divisors (41936567244).

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

31452425412 is a wasteful number, since it uses less digits than its factorization.

31452425412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2621035458 (or 2621035456 counting only the distinct ones).

The product of its digits is 38400, while the sum is 33.

Subtracting from 31452425412 its reverse (21452425413), we obtain a palindrome (9999999999).

The spelling of 31452425412 in words is "thirty-one billion, four hundred fifty-two million, four hundred twenty-five thousand, four hundred twelve".

Divisors: 1 2 3 4 6 12 2621035451 5242070902 7863106353 10484141804 15726212706 31452425412