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14157140 = 225707857
BaseRepresentation
bin110110000000…
…010101010100
3222122020221112
4312000111110
512111012030
61223234152
7231222314
oct66002524
928566845
1014157140
117a9a518
1248a8958
132c18b0a
141c47444
151399a95
hexd80554

14157140 has 12 divisors (see below), whose sum is σ = 29730036. Its totient is φ = 5662848.

The previous prime is 14157137. The next prime is 14157181. The reversal of 14157140 is 4175141.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 10995856 + 3161284 = 3316^2 + 1778^2 .

It is a super-2 number, since 2×141571402 = 400849225959200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 353909 + ... + 353948.

It is an arithmetic number, because the mean of its divisors is an integer number (2477503).

Almost surely, 214157140 is an apocalyptic number.

14157140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14157140 is an abundant number, since it is smaller than the sum of its proper divisors (15572896).

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

14157140 is a wasteful number, since it uses less digits than its factorization.

14157140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707866 (or 707864 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 14157140 is about 3762.5975070422. The cubic root of 14157140 is about 241.9126110257.

The spelling of 14157140 in words is "fourteen million, one hundred fifty-seven thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 707857 1415714 2831428 3539285 7078570 14157140