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108252909 = 3312313257
BaseRepresentation
bin1100111001111…
…00111011101101
321112200211002000
412130330323231
5210203043114
614424122513
72453064102
oct634747355
9245624060
10108252909
1156119016
1230306439
131957309b
141053caa9
159784e09
hex673ceed

108252909 has 16 divisors (see below), whose sum is σ = 160554240. Its totient is φ = 72087840.

The previous prime is 108252901. The next prime is 108252929. The reversal of 108252909 is 909252801.

It is not a de Polignac number, because 108252909 - 23 = 108252901 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108252901) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31609 + ... + 34865.

It is an arithmetic number, because the mean of its divisors is an integer number (10034640).

Almost surely, 2108252909 is an apocalyptic number.

It is an amenable number.

108252909 is a deficient number, since it is larger than the sum of its proper divisors (52301331).

108252909 is a wasteful number, since it uses less digits than its factorization.

108252909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4497 (or 4491 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 108252909 is about 10404.4658200217. The cubic root of 108252909 is about 476.5917554428.

The spelling of 108252909 in words is "one hundred eight million, two hundred fifty-two thousand, nine hundred nine".

Divisors: 1 3 9 27 1231 3257 3693 9771 11079 29313 33237 87939 4009367 12028101 36084303 108252909