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13875470 = 257198221
BaseRepresentation
bin110100111011…
…100100001110
3222002221120022
4310323210032
512023003340
61213222142
7225640160
oct64734416
928087508
1013875470
117917934
124791952
132b4a84b
141bb2930
1513413b5
hexd3b90e

13875470 has 16 divisors (see below), whose sum is σ = 28543968. Its totient is φ = 4757280.

The previous prime is 13875469. The next prime is 13875493. The reversal of 13875470 is 7457831.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 13875470.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99041 + ... + 99180.

It is an arithmetic number, because the mean of its divisors is an integer number (1783998).

Almost surely, 213875470 is an apocalyptic number.

13875470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13875470 is an abundant number, since it is smaller than the sum of its proper divisors (14668498).

13875470 is a wasteful number, since it uses less digits than its factorization.

13875470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198235.

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 13875470 is about 3724.9791945728. The cubic root of 13875470 is about 240.2974898930.

The spelling of 13875470 in words is "thirteen million, eight hundred seventy-five thousand, four hundred seventy".

Divisors: 1 2 5 7 10 14 35 70 198221 396442 991105 1387547 1982210 2775094 6937735 13875470