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14911980 = 2235248533
BaseRepresentation
bin111000111000…
…100111101100
31001001121101120
4320320213230
512304140410
61251340540
7240515106
oct70704754
931047346
1014911980
118465656
124bb1750
133121575
141da2576
151498570
hexe389ec

14911980 has 24 divisors (see below), whose sum is σ = 41753712. Its totient is φ = 3976512.

The previous prime is 14911957. The next prime is 14911991. The reversal of 14911980 is 8911941.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124207 + ... + 124326.

It is an arithmetic number, because the mean of its divisors is an integer number (1739738).

Almost surely, 214911980 is an apocalyptic number.

14911980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14911980 is an abundant number, since it is smaller than the sum of its proper divisors (26841732).

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

14911980 is a wasteful number, since it uses less digits than its factorization.

14911980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248545 (or 248543 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 33.

The square root of 14911980 is about 3861.6032939700. The cubic root of 14911980 is about 246.1378697063.

The spelling of 14911980 in words is "fourteen million, nine hundred eleven thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 248533 497066 745599 994132 1242665 1491198 2485330 2982396 3727995 4970660 7455990 14911980