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14649905 = 5107139197
BaseRepresentation
bin110111111000…
…101000110001
31000120021220002
4313320220301
512222244110
61241555345
7235344044
oct67705061
930507802
1014649905
1182a6766
124aa5b55
13305c1aa
141d34c5b
151445aa5
hexdf8a31

14649905 has 16 divisors (see below), whose sum is σ = 17962560. Its totient is φ = 11468352.

The previous prime is 14649857. The next prime is 14649907. The reversal of 14649905 is 50994641.

It is a cyclic number.

It is not a de Polignac number, because 14649905 - 26 = 14649841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (14649907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74267 + ... + 74463.

It is an arithmetic number, because the mean of its divisors is an integer number (1122660).

Almost surely, 214649905 is an apocalyptic number.

It is an amenable number.

14649905 is a deficient number, since it is larger than the sum of its proper divisors (3312655).

14649905 is a wasteful number, since it uses less digits than its factorization.

14649905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 14649905 is about 3827.5194316946. The cubic root of 14649905 is about 244.6873980640.

The spelling of 14649905 in words is "fourteen million, six hundred forty-nine thousand, nine hundred five".

Divisors: 1 5 107 139 197 535 695 985 14873 21079 27383 74365 105395 136915 2929981 14649905