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13897158 = 23111931091
BaseRepresentation
bin110101000000…
…110111000110
3222011001022120
4311000313012
512024202113
61213510410
7226060332
oct65006706
928131276
1013897158
117932160
1247a2406
132b57692
141bba7c2
151347a23
hexd40dc6

13897158 has 32 divisors (see below), whose sum is σ = 30506112. Its totient is φ = 4185600.

The previous prime is 13897141. The next prime is 13897181. The reversal of 13897158 is 85179831.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 12193 + ... + 13283.

It is an arithmetic number, because the mean of its divisors is an integer number (953316).

Almost surely, 213897158 is an apocalyptic number.

13897158 is an abundant number, since it is smaller than the sum of its proper divisors (16608954).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13897158 is a wasteful number, since it uses less digits than its factorization.

13897158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1300.

The product of its digits is 60480, while the sum is 42.

The square root of 13897158 is about 3727.8892150921. The cubic root of 13897158 is about 240.4226234081.

The spelling of 13897158 in words is "thirteen million, eight hundred ninety-seven thousand, one hundred fifty-eight".

Divisors: 1 2 3 6 11 22 33 66 193 386 579 1091 1158 2123 2182 3273 4246 6369 6546 12001 12738 24002 36003 72006 210563 421126 631689 1263378 2316193 4632386 6948579 13897158