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315871671012 = 22326322639251
BaseRepresentation
bin1001001100010110110…
…10110011001011100100
31010012022122021110021020
410212023122303023210
520133401121433022
6401035350051140
731551410621562
oct4461332631344
91105278243236
10315871671012
11111a62361687
1251274949ab0
1323a2c132b11
141140702aa32
15833aca635c
hex498b6b32e4

315871671012 has 12 divisors (see below), whose sum is σ = 737033899056. Its totient is φ = 105290557000.

The previous prime is 315871670969. The next prime is 315871671047. The reversal of 315871671012 is 210176178513.

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

It is a super-2 number, since 2×3158716710122 (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13161319614 + ... + 13161319637.

It is an arithmetic number, because the mean of its divisors is an integer number (61419491588).

Almost surely, 2315871671012 is an apocalyptic number.

It is an amenable number.

315871671012 is an abundant number, since it is smaller than the sum of its proper divisors (421162228044).

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

315871671012 is a wasteful number, since it uses less digits than its factorization.

315871671012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26322639258 (or 26322639256 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 42.

The spelling of 315871671012 in words is "three hundred fifteen billion, eight hundred seventy-one million, six hundred seventy-one thousand, twelve".

Divisors: 1 2 3 4 6 12 26322639251 52645278502 78967917753 105290557004 157935835506 315871671012