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14057840 = 245175723
BaseRepresentation
bin110101101000…
…000101110000
3222110012201202
4311220011300
512044322330
61221150332
7230326646
oct65500560
928405652
1014057840
117a31955
12485b3a8
132bb2864
141c1d196
15137a445
hexd68170

14057840 has 20 divisors (see below), whose sum is σ = 32684664. Its totient is φ = 5623104.

The previous prime is 14057819. The next prime is 14057843. The reversal of 14057840 is 4875041.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14057843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87782 + ... + 87941.

Almost surely, 214057840 is an apocalyptic number.

14057840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14057840 is an abundant number, since it is smaller than the sum of its proper divisors (18626824).

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

14057840 is a wasteful number, since it uses less digits than its factorization.

14057840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175736 (or 175730 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 14057840 is about 3749.3786151841. The cubic root of 14057840 is about 241.3456813953.

The spelling of 14057840 in words is "fourteen million, fifty-seven thousand, eight hundred forty".

Divisors: 1 2 4 5 8 10 16 20 40 80 175723 351446 702892 878615 1405784 1757230 2811568 3514460 7028920 14057840