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14157920 = 255712641
BaseRepresentation
bin110110000000…
…100001100000
3222122022000102
4312000201200
512111023140
61223241532
7231224510
oct66004140
928568012
1014157920
117aa0067
1248a92a8
132c1928a
141c47840
151399e15
hexd80860

14157920 has 48 divisors (see below), whose sum is σ = 38229408. Its totient is φ = 4853760.

The previous prime is 14157893. The next prime is 14157937. The reversal of 14157920 is 2975141.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5201 + ... + 7440.

It is an arithmetic number, because the mean of its divisors is an integer number (796446).

Almost surely, 214157920 is an apocalyptic number.

14157920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14157920 is an abundant number, since it is smaller than the sum of its proper divisors (24071488).

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

14157920 is a wasteful number, since it uses less digits than its factorization.

14157920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12663 (or 12655 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 14157920 is about 3762.7011574134. The cubic root of 14157920 is about 241.9170537397.

The spelling of 14157920 in words is "fourteen million, one hundred fifty-seven thousand, nine hundred twenty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 32 35 40 56 70 80 112 140 160 224 280 560 1120 12641 25282 50564 63205 88487 101128 126410 176974 202256 252820 353948 404512 442435 505640 707896 884870 1011280 1415792 1769740 2022560 2831584 3539480 7078960 14157920