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13942473 = 37989661
BaseRepresentation
bin110101001011…
…111011001001
3222020100110220
4311023323021
512032124343
61214500253
7226336416
oct65137311
928210426
1013942473
117963206
124804689
132b721ac
141bcd10d
151356183
hexd4bec9

13942473 has 16 divisors (see below), whose sum is σ = 19065600. Its totient is φ = 9060480.

The previous prime is 13942469. The next prime is 13942477. The reversal of 13942473 is 37424931.

It is an interprime number because it is at equal distance from previous prime (13942469) and next prime (13942477).

It is not a de Polignac number, because 13942473 - 22 = 13942469 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13942477) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20763 + ... + 21423.

It is an arithmetic number, because the mean of its divisors is an integer number (1191600).

Almost surely, 213942473 is an apocalyptic number.

It is an amenable number.

13942473 is a deficient number, since it is larger than the sum of its proper divisors (5123127).

13942473 is an equidigital number, since it uses as much as digits as its factorization.

13942473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 832.

The product of its digits is 18144, while the sum is 33.

The square root of 13942473 is about 3733.9621047890. The cubic root of 13942473 is about 240.6836583367.

The spelling of 13942473 in words is "thirteen million, nine hundred forty-two thousand, four hundred seventy-three".

Divisors: 1 3 79 89 237 267 661 1983 7031 21093 52219 58829 156657 176487 4647491 13942473