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13379697 = 3217157557
BaseRepresentation
bin110011000010…
…100001110001
3221011202111100
4303002201301
511411122242
61154435013
7221503602
oct63024161
927152440
1013379697
117609401
124592a69
132a05ca6
141ac3da9
15129454c
hexcc2871

13379697 has 24 divisors (see below), whose sum is σ = 20630376. Its totient is φ = 8326656.

The previous prime is 13379689. The next prime is 13379711. The reversal of 13379697 is 79697331.

It can be written as a sum of positive squares in 4 ways, for example, as 484416 + 12895281 = 696^2 + 3591^2 .

It is not a de Polignac number, because 13379697 - 23 = 13379689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13379627) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23743 + ... + 24299.

It is an arithmetic number, because the mean of its divisors is an integer number (859599).

Almost surely, 213379697 is an apocalyptic number.

13379697 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

13379697 is a deficient number, since it is larger than the sum of its proper divisors (7250679).

13379697 is a wasteful number, since it uses less digits than its factorization.

13379697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737 (or 734 counting only the distinct ones).

The product of its digits is 214326, while the sum is 45.

The square root of 13379697 is about 3657.8268138336. The cubic root of 13379697 is about 237.4007533617.

The spelling of 13379697 in words is "thirteen million, three hundred seventy-nine thousand, six hundred ninety-seven".

Divisors: 1 3 9 17 51 153 157 471 557 1413 1671 2669 5013 8007 9469 24021 28407 85221 87449 262347 787041 1486633 4459899 13379697