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13909214232 = 2332193183531
BaseRepresentation
bin11001111010000110…
…11100010000011000
31022220100122021220200
430331003130100120
5211441224323412
610220110422200
71001453240664
oct147503342030
938810567820
1013909214232
115998430581
122842201960
1314088733a4
1495d4038a4
1556619d9dc
hex33d0dc418

13909214232 has 24 divisors (see below), whose sum is σ = 37670788740. Its totient is φ = 4636404720.

The previous prime is 13909214227. The next prime is 13909214239. The reversal of 13909214232 is 23241290931.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13909214239) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 96591694 + ... + 96591837.

Almost surely, 213909214232 is an apocalyptic number.

13909214232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13909214232 is an abundant number, since it is smaller than the sum of its proper divisors (23761574508).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13909214232 is a wasteful number, since it uses less digits than its factorization.

13909214232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193183543 (or 193183536 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The spelling of 13909214232 in words is "thirteen billion, nine hundred nine million, two hundred fourteen thousand, two hundred thirty-two".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 193183531 386367062 579550593 772734124 1159101186 1545468248 1738651779 2318202372 3477303558 4636404744 6954607116 13909214232