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1310655340673 = 72157170369861
BaseRepresentation
bin10011000100101001001…
…001010110000010000001
311122022000211020211202022
4103010221021112002001
5132433210231400143
62442035020331225
7163456155402500
oct23045111260201
94568024224668
101310655340673
11465933853368
1219201b9a3b15
13967957b8753
144761677c837
152415e5d3268
hex13129256081

1310655340673 has 12 divisors (see below), whose sum is σ = 1534350977172. Its totient is φ = 1116263322720.

The previous prime is 1310655340633. The next prime is 1310655340697. The reversal of 1310655340673 is 3760435560131.

It can be written as a sum of positive squares in 2 ways, for example, as 107097144049 + 1203558196624 = 327257^2 + 1097068^2 .

It is not a de Polignac number, because 1310655340673 - 212 = 1310655336577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1310655340613) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85177238 + ... + 85192623.

It is an arithmetic number, because the mean of its divisors is an integer number (127862581431).

Almost surely, 21310655340673 is an apocalyptic number.

It is an amenable number.

1310655340673 is a deficient number, since it is larger than the sum of its proper divisors (223695636499).

1310655340673 is a wasteful number, since it uses less digits than its factorization.

1310655340673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170370032 (or 170370025 counting only the distinct ones).

The product of its (nonzero) digits is 680400, while the sum is 44.

The spelling of 1310655340673 in words is "one trillion, three hundred ten billion, six hundred fifty-five million, three hundred forty thousand, six hundred seventy-three".

Divisors: 1 7 49 157 1099 7693 170369861 1192589027 8348123189 26748068177 187236477239 1310655340673