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14257428 = 2234992381
BaseRepresentation
bin110110011000…
…110100010100
3222211100111220
4312120310110
512122214203
61225330340
7232120563
oct66306424
928740456
1014257428
1180588a9
1249369b0
132c52663
141c71bda
1513b9653
hexd98d14

14257428 has 24 divisors (see below), whose sum is σ = 33348000. Its totient is φ = 4740960.

The previous prime is 14257423. The next prime is 14257457. The reversal of 14257428 is 82475241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14257421) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4798 + ... + 7178.

It is an arithmetic number, because the mean of its divisors is an integer number (1389500).

Almost surely, 214257428 is an apocalyptic number.

It is an amenable number.

14257428 is an abundant number, since it is smaller than the sum of its proper divisors (19090572).

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

14257428 is a wasteful number, since it uses less digits than its factorization.

14257428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2887 (or 2885 counting only the distinct ones).

The product of its digits is 17920, while the sum is 33.

The square root of 14257428 is about 3775.9009520908. The cubic root of 14257428 is about 242.4824970539.

The spelling of 14257428 in words is "fourteen million, two hundred fifty-seven thousand, four hundred twenty-eight".

Divisors: 1 2 3 4 6 12 499 998 1497 1996 2381 2994 4762 5988 7143 9524 14286 28572 1188119 2376238 3564357 4752476 7128714 14257428