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31311010112030 = 2511284645546473
BaseRepresentation
bin1110001111010001010011…
…01000101010001000011110
311002212022012010111212001022
413013220221220222020132
513100444422042041110
6150332025055444142
76411101006440565
oct707505150521036
9132768163455038
1031311010112030
119a81a19a28390
123618349b26652
13146180059187c
147a3664cb8bdc
153947105d9755
hex1c7a29a2a21e

31311010112030 has 16 divisors (see below), whose sum is σ = 61483438038384. Its totient is φ = 11385821858880.

The previous prime is 31311010111963. The next prime is 31311010112071. The reversal of 31311010112030 is 3021101011313.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142322773127 + ... + 142322773346.

It is an arithmetic number, because the mean of its divisors is an integer number (3842714877399).

Almost surely, 231311010112030 is an apocalyptic number.

31311010112030 is a deficient number, since it is larger than the sum of its proper divisors (30172427926354).

31311010112030 is a wasteful number, since it uses less digits than its factorization.

31311010112030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284645546491.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 31311010112030 its reverse (3021101011313), we get a palindrome (34332111123343).

The spelling of 31311010112030 in words is "thirty-one trillion, three hundred eleven billion, ten million, one hundred twelve thousand, thirty".

Divisors: 1 2 5 10 11 22 55 110 284645546473 569291092946 1423227732365 2846455464730 3131101011203 6262202022406 15655505056015 31311010112030