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13891948 = 2274112101
BaseRepresentation
bin110100111111…
…100101101100
3222010210011121
4310333211230
512024020243
61213430324
7226036210
oct64774554
928123147
1013891948
117929254
12479b3a4
132b551b5
141bb8940
1513461ed
hexd3f96c

13891948 has 24 divisors (see below), whose sum is σ = 28463904. Its totient is φ = 5808000.

The previous prime is 13891903. The next prime is 13891949. The reversal of 13891948 is 84919831.

It is not an unprimeable number, because it can be changed into a prime (13891949) 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, 4903 + ... + 7198.

It is an arithmetic number, because the mean of its divisors is an integer number (1185996).

Almost surely, 213891948 is an apocalyptic number.

It is an amenable number.

13891948 is an abundant number, since it is smaller than the sum of its proper divisors (14571956).

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

13891948 is a wasteful number, since it uses less digits than its factorization.

13891948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12153 (or 12151 counting only the distinct ones).

The product of its digits is 62208, while the sum is 43.

The square root of 13891948 is about 3727.1903627263. The cubic root of 13891948 is about 240.3925750958.

The spelling of 13891948 in words is "thirteen million, eight hundred ninety-one thousand, nine hundred forty-eight".

Divisors: 1 2 4 7 14 28 41 82 164 287 574 1148 12101 24202 48404 84707 169414 338828 496141 992282 1984564 3472987 6945974 13891948