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313011330972 = 22326084277581
BaseRepresentation
bin1001000111000001110…
…11011101111110011100
31002220221022001010101020
410203200323131332130
520112021400042342
6355443451044140
731420466262024
oct4434073357634
91086838033336
10313011330972
1111082481089a
12507b6a40650
1323694669c12
14112151baa84
15821eaed0ec
hex48e0eddf9c

313011330972 has 12 divisors (see below), whose sum is σ = 730359772296. Its totient is φ = 104337110320.

The previous prime is 313011330971. The next prime is 313011330977. The reversal of 313011330972 is 279033110313.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313011330971) 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, 13042138779 + ... + 13042138802.

It is an arithmetic number, because the mean of its divisors is an integer number (60863314358).

Almost surely, 2313011330972 is an apocalyptic number.

It is an amenable number.

313011330972 is an abundant number, since it is smaller than the sum of its proper divisors (417348441324).

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

313011330972 is a wasteful number, since it uses less digits than its factorization.

313011330972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26084277588 (or 26084277586 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 33.

The spelling of 313011330972 in words is "three hundred thirteen billion, eleven million, three hundred thirty thousand, nine hundred seventy-two".

Divisors: 1 2 3 4 6 12 26084277581 52168555162 78252832743 104337110324 156505665486 313011330972