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13798697 = 111254427
BaseRepresentation
bin110100101000…
…110100101001
3221222001020212
4310220310221
512013024242
61211430505
7225200303
oct64506451
927861225
1013798697
117875190
124755435
132b21913
141b92973
151328782
hexd28d29

13798697 has 4 divisors (see below), whose sum is σ = 15053136. Its totient is φ = 12544260.

The previous prime is 13798663. The next prime is 13798699. The reversal of 13798697 is 79689731.

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: 79689731 = 117244521.

It is a cyclic number.

It is not a de Polignac number, because 13798697 - 210 = 13797673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13798699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 627203 + ... + 627224.

It is an arithmetic number, because the mean of its divisors is an integer number (3763284).

Almost surely, 213798697 is an apocalyptic number.

It is an amenable number.

13798697 is a deficient number, since it is larger than the sum of its proper divisors (1254439).

13798697 is a wasteful number, since it uses less digits than its factorization.

13798697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1254438.

The product of its digits is 571536, while the sum is 50.

The square root of 13798697 is about 3714.6597421567. The cubic root of 13798697 is about 239.8534811710.

The spelling of 13798697 in words is "thirteen million, seven hundred ninety-eight thousand, six hundred ninety-seven".

Divisors: 1 11 1254427 13798697