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14891149 = 721397241
BaseRepresentation
bin111000110011…
…100010001101
31001000112211001
4320303202031
512303004044
61251100301
7240400300
oct70634215
931015731
1014891149
118450a39
124ba1691
133114c40
141d98b37
1514922d4
hexe3388d

14891149 has 24 divisors (see below), whose sum is σ = 18925368. Its totient is φ = 11612160.

The previous prime is 14891147. The next prime is 14891153. The reversal of 14891149 is 94119841.

14891149 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1334025 + 13557124 = 1155^2 + 3682^2 .

It is not a de Polignac number, because 14891149 - 21 = 14891147 is a prime.

14891149 is strictly pandigital in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14891147) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61669 + ... + 61909.

It is an arithmetic number, because the mean of its divisors is an integer number (788557).

Almost surely, 214891149 is an apocalyptic number.

It is an amenable number.

14891149 is a deficient number, since it is larger than the sum of its proper divisors (4034219).

14891149 is a wasteful number, since it uses less digits than its factorization.

14891149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365 (or 358 counting only the distinct ones).

The product of its digits is 10368, while the sum is 37.

The square root of 14891149 is about 3858.9051556109. The cubic root of 14891149 is about 246.0232037953.

The spelling of 14891149 in words is "fourteen million, eight hundred ninety-one thousand, one hundred forty-nine".

Divisors: 1 7 13 49 91 97 241 637 679 1261 1687 3133 4753 8827 11809 21931 23377 61789 153517 163639 303901 1145473 2127307 14891149