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13657423 = 132345677
BaseRepresentation
bin110100000110…
…010101001111
3221200212110111
4310012111033
511444014143
61204420451
7224041363
oct64062517
927625414
1013657423
11778902a
1246a7727
132aa2520
141b572a3
1512eb99d
hexd0654f

13657423 has 8 divisors (see below), whose sum is σ = 15347808. Its totient is φ = 12058464.

The previous prime is 13657381. The next prime is 13657433. The reversal of 13657423 is 32475631.

13657423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13657423 - 29 = 13656911 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13657433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22540 + ... + 23137.

It is an arithmetic number, because the mean of its divisors is an integer number (1918476).

Almost surely, 213657423 is an apocalyptic number.

13657423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13657423 is a deficient number, since it is larger than the sum of its proper divisors (1690385).

13657423 is a wasteful number, since it uses less digits than its factorization.

13657423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45713.

The product of its digits is 15120, while the sum is 31.

The square root of 13657423 is about 3695.5950806332. The cubic root of 13657423 is about 239.0321146367.

The spelling of 13657423 in words is "thirteen million, six hundred fifty-seven thousand, four hundred twenty-three".

Divisors: 1 13 23 299 45677 593801 1050571 13657423