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123232031032 = 23111400363989
BaseRepresentation
bin111001011000100110…
…0111001000100111000
3102210002020210210120111
41302301030321010320
54004334344443112
6132340110034104
711621542660255
oct1626114710470
9383066723514
10123232031032
11482982a5950
121ba721a8934
13b80b98c476
145d706ac42c
153313ace5a7
hex1cb1339138

123232031032 has 16 divisors (see below), whose sum is σ = 252065518200. Its totient is φ = 56014559520.

The previous prime is 123232031023. The next prime is 123232031057. The reversal of 123232031032 is 230130232321.

It is a super-2 number, since 2×1232320310322 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 123232030994 and 123232031012.

It is a congruent number.

It is an unprimeable number.

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, 700181907 + ... + 700182082.

Almost surely, 2123232031032 is an apocalyptic number.

It is an amenable number.

123232031032 is an abundant number, since it is smaller than the sum of its proper divisors (128833487168).

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

123232031032 is a wasteful number, since it uses less digits than its factorization.

123232031032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1400364006 (or 1400364002 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 123232031032 its reverse (230130232321), we get a palindrome (353362263353).

The spelling of 123232031032 in words is "one hundred twenty-three billion, two hundred thirty-two million, thirty-one thousand, thirty-two".

Divisors: 1 2 4 8 11 22 44 88 1400363989 2800727978 5601455956 11202911912 15404003879 30808007758 61616015516 123232031032