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13898651 = 131069127
BaseRepresentation
bin110101000001…
…001110011011
3222011010100212
4311001032123
512024224101
61213521335
7226064564
oct65011633
928133325
1013898651
117933298
1247a324b
132b58270
141bbb16b
1513481bb
hexd4139b

13898651 has 4 divisors (see below), whose sum is σ = 14967792. Its totient is φ = 12829512.

The previous prime is 13898629. The next prime is 13898653. The reversal of 13898651 is 15689831.

13898651 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13898651 - 26 = 13898587 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13898599 and 13898608.

It is not an unprimeable number, because it can be changed into a prime (13898653) 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, 534551 + ... + 534576.

It is an arithmetic number, because the mean of its divisors is an integer number (3741948).

Almost surely, 213898651 is an apocalyptic number.

13898651 is a deficient number, since it is larger than the sum of its proper divisors (1069141).

13898651 is a wasteful number, since it uses less digits than its factorization.

13898651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1069140.

The product of its digits is 51840, while the sum is 41.

The square root of 13898651 is about 3728.0894570812. The cubic root of 13898651 is about 240.4312327973.

It can be divided in two parts, 138 and 98651, that added together give a palindrome (98789).

The spelling of 13898651 in words is "thirteen million, eight hundred ninety-eight thousand, six hundred fifty-one".

Divisors: 1 13 1069127 13898651