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13010331091 = 83156750977
BaseRepresentation
bin11000001110111100…
…11110010111010011
31020120201020022001111
430013132132113103
5203121121043331
65551000314151
7640256663302
oct140736362723
936521208044
1013010331091
115576aa134a
122631172957
1312c457b184
148b5c98439
155122e2db1
hex30779e5d3

13010331091 has 4 divisors (see below), whose sum is σ = 13167082152. Its totient is φ = 12853580032.

The previous prime is 13010331071. The next prime is 13010331101. The reversal of 13010331091 is 19013301031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19013301031 = 120889157279.

It is a cyclic number.

It is not a de Polignac number, because 13010331091 - 211 = 13010329043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13010331031) 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, 78375406 + ... + 78375571.

It is an arithmetic number, because the mean of its divisors is an integer number (3291770538).

Almost surely, 213010331091 is an apocalyptic number.

13010331091 is a deficient number, since it is larger than the sum of its proper divisors (156751061).

13010331091 is an equidigital number, since it uses as much as digits as its factorization.

13010331091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156751060.

The product of its (nonzero) digits is 243, while the sum is 22.

The spelling of 13010331091 in words is "thirteen billion, ten million, three hundred thirty-one thousand, ninety-one".

Divisors: 1 83 156750977 13010331091