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31056012363 = 310352004121
BaseRepresentation
bin11100111011000101…
…010010010001001011
32222011100100220000010
4130323011102101023
51002100314343423
622133354043003
72146411515045
oct347305222113
988140326003
1031056012363
1112197344822
126028719463
132c0c0b419c
1417087b6a95
15c1b6c1693
hex73b15244b

31056012363 has 4 divisors (see below), whose sum is σ = 41408016488. Its totient is φ = 20704008240.

The previous prime is 31056012353. The next prime is 31056012389. The reversal of 31056012363 is 36321065013.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 31056012363 - 24 = 31056012347 is a prime.

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 31056012363.

It is not an unprimeable number, because it can be changed into a prime (31056012313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5176002058 + ... + 5176002063.

It is an arithmetic number, because the mean of its divisors is an integer number (10352004122).

Almost surely, 231056012363 is an apocalyptic number.

31056012363 is a deficient number, since it is larger than the sum of its proper divisors (10352004125).

31056012363 is a wasteful number, since it uses less digits than its factorization.

31056012363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10352004124.

The product of its (nonzero) digits is 9720, while the sum is 30.

Adding to 31056012363 its reverse (36321065013), we get a palindrome (67377077376).

The spelling of 31056012363 in words is "thirty-one billion, fifty-six million, twelve thousand, three hundred sixty-three".

Divisors: 1 3 10352004121 31056012363