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14990880 = 253531231
BaseRepresentation
bin111001001011…
…111000100000
31001012121121210
4321023320200
512314202010
61253150120
7241264122
oct71137040
931177553
1014990880
118509963
12502b340
13314b458
141dc3212
1514b1b20
hexe4be20

14990880 has 48 divisors (see below), whose sum is σ = 47222784. Its totient is φ = 3997440.

The previous prime is 14990861. The next prime is 14990881. The reversal of 14990880 is 8809941.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (14990881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15136 + ... + 16095.

It is an arithmetic number, because the mean of its divisors is an integer number (983808).

Almost surely, 214990880 is an apocalyptic number.

14990880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14990880 is an abundant number, since it is smaller than the sum of its proper divisors (32231904).

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

14990880 is a wasteful number, since it uses less digits than its factorization.

14990880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31249 (or 31241 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 39.

The square root of 14990880 is about 3871.8057802529. The cubic root of 14990880 is about 246.5712154019.

The spelling of 14990880 in words is "fourteen million, nine hundred ninety thousand, eight hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 80 96 120 160 240 480 31231 62462 93693 124924 156155 187386 249848 312310 374772 468465 499696 624620 749544 936930 999392 1249240 1499088 1873860 2498480 2998176 3747720 4996960 7495440 14990880