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14992991 = 1310611087
BaseRepresentation
bin111001001100…
…011001011111
31001012201111222
4321030121133
512314233431
61253203555
7241303226
oct71143137
931181458
1014992991
118510502
1250305bb
13314c3c0
141dc3cbd
1514b257b
hexe4c65f

14992991 has 8 divisors (see below), whose sum is σ = 16176384. Its totient is φ = 13813920.

The previous prime is 14992981. The next prime is 14993039. The reversal of 14992991 is 19929941.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 14992991 - 210 = 14991967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14992951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13250 + ... + 14336.

It is an arithmetic number, because the mean of its divisors is an integer number (2022048).

Almost surely, 214992991 is an apocalyptic number.

14992991 is a deficient number, since it is larger than the sum of its proper divisors (1183393).

14992991 is a wasteful number, since it uses less digits than its factorization.

14992991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2161.

The product of its digits is 52488, while the sum is 44.

The square root of 14992991 is about 3872.0783824711. The cubic root of 14992991 is about 246.5827888253.

The spelling of 14992991 in words is "fourteen million, nine hundred ninety-two thousand, nine hundred ninety-one".

Divisors: 1 13 1061 1087 13793 14131 1153307 14992991