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1310893057 = 7916593583
BaseRepresentation
bin100111000100010…
…1010010000000001
310101100200021012201
41032020222100001
510141042034212
6334024553201
744325256435
oct11610522001
93340607181
101310893057
11612a683a1
12307022801
1317b780186
14c61589c5
157a142b57
hex4e22a401

1310893057 has 4 divisors (see below), whose sum is σ = 1327486720. Its totient is φ = 1294299396.

The previous prime is 1310893021. The next prime is 1310893079. The reversal of 1310893057 is 7503980131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7503980131 = 71105689861.

It is a cyclic number.

It is not a de Polignac number, because 1310893057 - 223 = 1302504449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1310893097) 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, 8296713 + ... + 8296870.

It is an arithmetic number, because the mean of its divisors is an integer number (331871680).

Almost surely, 21310893057 is an apocalyptic number.

It is an amenable number.

1310893057 is a deficient number, since it is larger than the sum of its proper divisors (16593663).

1310893057 is an equidigital number, since it uses as much as digits as its factorization.

1310893057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16593662.

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 1310893057 is about 36206.2571525973. The cubic root of 1310893057 is about 1094.4327683543.

The spelling of 1310893057 in words is "one billion, three hundred ten million, eight hundred ninety-three thousand, fifty-seven".

Divisors: 1 79 16593583 1310893057