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31300131244 = 2272971072363
BaseRepresentation
bin11101001001101000…
…100001100110101100
32222210100201102011011
4131021220201212230
51003100313144434
622213514235004
72155434503644
oct351150414654
988710642134
1031300131244
1112302120968
126096425a64
132c4a847a25
14172cda1524
15c32d42e64
hex749a219ac

31300131244 has 12 divisors (see below), whose sum is σ = 54782787304. Its totient is φ = 15647906304.

The previous prime is 31300131211. The next prime is 31300131257. The reversal of 31300131244 is 44213100313.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 506994 + ... + 565369.

Almost surely, 231300131244 is an apocalyptic number.

It is an amenable number.

31300131244 is a deficient number, since it is larger than the sum of its proper divisors (23482656060).

31300131244 is a wasteful number, since it uses less digits than its factorization.

31300131244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1079664 (or 1079662 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 31300131244 its reverse (44213100313), we get a palindrome (75513231557).

The spelling of 31300131244 in words is "thirty-one billion, three hundred million, one hundred thirty-one thousand, two hundred forty-four".

Divisors: 1 2 4 7297 14594 29188 1072363 2144726 4289452 7825032811 15650065622 31300131244