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14920947 = 321987257
BaseRepresentation
bin111000111010…
…110011110011
31001002001200200
4320322303303
512304432242
61251450243
7240553206
oct70726363
931061620
1014920947
118471368
124bb6983
133125682
141da593d
15149b04c
hexe3acf3

14920947 has 12 divisors (see below), whose sum is σ = 22687080. Its totient is φ = 9423648.

The previous prime is 14920943. The next prime is 14920963. The reversal of 14920947 is 74902941.

It is not a de Polignac number, because 14920947 - 22 = 14920943 is a prime.

It is not an unprimeable number, because it can be changed into a prime (14920943) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43458 + ... + 43799.

It is an arithmetic number, because the mean of its divisors is an integer number (1890590).

Almost surely, 214920947 is an apocalyptic number.

14920947 is a deficient number, since it is larger than the sum of its proper divisors (7766133).

14920947 is a wasteful number, since it uses less digits than its factorization.

14920947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87282 (or 87279 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 14920947 is about 3862.7641657238. The cubic root of 14920947 is about 246.1871964003.

The spelling of 14920947 in words is "fourteen million, nine hundred twenty thousand, nine hundred forty-seven".

Divisors: 1 3 9 19 57 171 87257 261771 785313 1657883 4973649 14920947