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31233103112 = 2317419224131
BaseRepresentation
bin11101000101101000…
…110101010100001000
32222121200121000211202
4131011220311110020
51002431133244422
622203121443332
72153661665441
oct350550652410
988550530752
1031233103112
11122782aa712
126077aa0548
132c399a9b03
1417241142c8
15c2c002b92
hex745a35508

31233103112 has 16 divisors (see below), whose sum is σ = 58565691600. Its totient is φ = 15615585360.

The previous prime is 31233103081. The next prime is 31233103117. The reversal of 31233103112 is 21130133213.

It is not an unprimeable number, because it can be changed into a prime (31233103117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27287 + ... + 251417.

It is an arithmetic number, because the mean of its divisors is an integer number (3660355725).

Almost surely, 231233103112 is an apocalyptic number.

It is an amenable number.

31233103112 is a deficient number, since it is larger than the sum of its proper divisors (27332588488).

31233103112 is a wasteful number, since it uses less digits than its factorization.

31233103112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241556 (or 241552 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 31233103112 its reverse (21130133213), we get a palindrome (52363236325).

The spelling of 31233103112 in words is "thirty-one billion, two hundred thirty-three million, one hundred three thousand, one hundred twelve".

Divisors: 1 2 4 8 17419 34838 69676 139352 224131 448262 896524 1793048 3904137889 7808275778 15616551556 31233103112