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13788053 = 19725687
BaseRepresentation
bin110100100110…
…001110010101
3221221111122122
4310212032111
512012204203
61211305325
7225124256
oct64461625
927844578
1013788053
117868194
12474b245
132b19b16
141b8cb2d
151325538
hexd26395

13788053 has 4 divisors (see below), whose sum is σ = 14513760. Its totient is φ = 13062348.

The previous prime is 13788041. The next prime is 13788059. The reversal of 13788053 is 35088731.

13788053 is nontrivially palindromic in base 3.

13788053 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is not a de Polignac number, because 13788053 - 26 = 13787989 is a prime.

It is a super-2 number, since 2×137880532 = 380220811061618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13788059) 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, 362825 + ... + 362862.

It is an arithmetic number, because the mean of its divisors is an integer number (3628440).

Almost surely, 213788053 is an apocalyptic number.

It is an amenable number.

13788053 is a deficient number, since it is larger than the sum of its proper divisors (725707).

13788053 is an equidigital number, since it uses as much as digits as its factorization.

13788053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725706.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 13788053 is about 3713.2267638807. The cubic root of 13788053 is about 239.7917928059.

The spelling of 13788053 in words is "thirteen million, seven hundred eighty-eight thousand, fifty-three".

Divisors: 1 19 725687 13788053