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31300131412 = 2211346712589
BaseRepresentation
bin11101001001101000…
…100001101001010100
32222210100201102101101
4131021220201221110
51003100313201122
622213514235444
72155434504304
oct351150415124
988710642341
1031300131412
1112302121000
126096425b84
132c4a847b24
14172cda1604
15c32d43027
hex749a21a54

31300131412 has 48 divisors (see below), whose sum is σ = 60382445760. Its totient is φ = 14195739360.

The previous prime is 31300131409. The next prime is 31300131437. The reversal of 31300131412 is 21413100313.

It is a super-2 number, since 2×313001314122 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31300131412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2480014 + ... + 2492602.

It is an arithmetic number, because the mean of its divisors is an integer number (1257967620).

Almost surely, 231300131412 is an apocalyptic number.

It is an amenable number.

31300131412 is a deficient number, since it is larger than the sum of its proper divisors (29082314348).

31300131412 is a wasteful number, since it uses less digits than its factorization.

31300131412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13093 (or 13069 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 31300131412 its reverse (21413100313), we get a palindrome (52713231725).

The spelling of 31300131412 in words is "thirty-one billion, three hundred million, one hundred thirty-one thousand, four hundred twelve".

Divisors: 1 2 4 11 22 44 121 242 467 484 934 1331 1868 2662 5137 5324 10274 12589 20548 25178 50356 56507 113014 138479 226028 276958 553916 621577 1243154 1523269 2486308 3046538 5879063 6093076 11758126 16755959 23516252 33511918 64669693 67023836 129339386 258678772 711366623 1422733246 2845466492 7825032853 15650065706 31300131412