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108109129 = 2930712143
BaseRepresentation
bin1100111000110…
…01110101001001
321112102111211211
412130121311021
5210133443004
614421053121
72451624652
oct634316511
9245374754
10108109129
115602aa97
12302571a1
13195227cb
1410502529
159757504
hex6719d49

108109129 has 8 divisors (see below), whose sum is σ = 112210560. Its totient is φ = 104032656.

The previous prime is 108109093. The next prime is 108109139. The reversal of 108109129 is 921901801.

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 108109129 - 29 = 108108617 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 108109129.

It is not an unprimeable number, because it can be changed into a prime (108109139) 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, 2832 + ... + 14974.

It is an arithmetic number, because the mean of its divisors is an integer number (14026320).

Almost surely, 2108109129 is an apocalyptic number.

It is an amenable number.

108109129 is a deficient number, since it is larger than the sum of its proper divisors (4101431).

108109129 is a wasteful number, since it uses less digits than its factorization.

108109129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12479.

The product of its (nonzero) digits is 1296, while the sum is 31.

The square root of 108109129 is about 10397.5539912039. The cubic root of 108109129 is about 476.3806611226.

The spelling of 108109129 in words is "one hundred eight million, one hundred nine thousand, one hundred twenty-nine".

Divisors: 1 29 307 8903 12143 352147 3727901 108109129