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14157860 = 2254571549
BaseRepresentation
bin110110000000…
…100000100100
3222122021221012
4312000200210
512111022420
61223241352
7231224363
oct66004044
928567835
1014157860
117aa0012
1248a9258
132c19242
141c477da
151399dc5
hexd80824

14157860 has 24 divisors (see below), whose sum is σ = 29815800. Its totient is φ = 5647104.

The previous prime is 14157859. The next prime is 14157881. The reversal of 14157860 is 6875141.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2611456 + 11546404 = 1616^2 + 3398^2 .

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, 8366 + ... + 9914.

It is an arithmetic number, because the mean of its divisors is an integer number (1242325).

Almost surely, 214157860 is an apocalyptic number.

14157860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14157860 is an abundant number, since it is smaller than the sum of its proper divisors (15657940).

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

14157860 is a wasteful number, since it uses less digits than its factorization.

14157860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2015 (or 2013 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 14157860 is about 3762.6931844093. The cubic root of 14157860 is about 241.9167119982.

The spelling of 14157860 in words is "fourteen million, one hundred fifty-seven thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 20 457 914 1549 1828 2285 3098 4570 6196 7745 9140 15490 30980 707893 1415786 2831572 3539465 7078930 14157860