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14903149 = 23647963
BaseRepresentation
bin111000110110…
…011101101101
31001001011021111
4320312131231
512303400044
61251232021
7240450262
oct70663555
931034244
1014903149
118459a58
124ba8611
13311a541
141d9d269
151495b34
hexe3676d

14903149 has 4 divisors (see below), whose sum is σ = 15551136. Its totient is φ = 14255164.

The previous prime is 14903137. The next prime is 14903153. The reversal of 14903149 is 94130941.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94130941 = 409230149.

It is a cyclic number.

It is not a de Polignac number, because 14903149 - 25 = 14903117 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 14903149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14903159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 323959 + ... + 324004.

It is an arithmetic number, because the mean of its divisors is an integer number (3887784).

Almost surely, 214903149 is an apocalyptic number.

It is an amenable number.

14903149 is a deficient number, since it is larger than the sum of its proper divisors (647987).

14903149 is an equidigital number, since it uses as much as digits as its factorization.

14903149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647986.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 14903149 is about 3860.4596876538. The cubic root of 14903149 is about 246.0892718060.

The spelling of 14903149 in words is "fourteen million, nine hundred three thousand, one hundred forty-nine".

Divisors: 1 23 647963 14903149