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13357427 = 17785731
BaseRepresentation
bin110010111101…
…000101110011
3221010121221112
4302331011303
511404414202
61154143535
7221351636
oct62750563
927117845
1013357427
1175a36a6
124581bab
1329c8b05
141ab9c1d
15128cb52
hexcbd173

13357427 has 4 divisors (see below), whose sum is σ = 14143176. Its totient is φ = 12571680.

The previous prime is 13357397. The next prime is 13357441. The reversal of 13357427 is 72475331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72475331 = 411767691.

It is a cyclic number.

It is not a de Polignac number, because 13357427 - 214 = 13341043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13357393 and 13357402.

It is not an unprimeable number, because it can be changed into a prime (13357327) 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, 392849 + ... + 392882.

It is an arithmetic number, because the mean of its divisors is an integer number (3535794).

Almost surely, 213357427 is an apocalyptic number.

13357427 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

13357427 is a deficient number, since it is larger than the sum of its proper divisors (785749).

13357427 is an equidigital number, since it uses as much as digits as its factorization.

13357427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785748.

The product of its digits is 17640, while the sum is 32.

The square root of 13357427 is about 3654.7813888111. The cubic root of 13357427 is about 237.2689653553.

The spelling of 13357427 in words is "thirteen million, three hundred fifty-seven thousand, four hundred twenty-seven".

Divisors: 1 17 785731 13357427