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103117129 = 3115721187
BaseRepresentation
bin1100010010101…
…11000101001001
321012000220002221
412021113011021
5202344222004
614122054041
72361324013
oct611270511
9235026087
10103117129
1153230475
122a64a321
131849556b
14d9a31b3
1590bd354
hex6257149

103117129 has 8 divisors (see below), whose sum is σ = 107126528. Its totient is φ = 99150480.

The previous prime is 103117117. The next prime is 103117141. The reversal of 103117129 is 921711301.

It is an interprime number because it is at equal distance from previous prime (103117117) and next prime (103117141).

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 103117129 - 29 = 103116617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103117109) 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, 5727 + ... + 15460.

It is an arithmetic number, because the mean of its divisors is an integer number (13390816).

Almost surely, 2103117129 is an apocalyptic number.

It is an amenable number.

103117129 is a deficient number, since it is larger than the sum of its proper divisors (4009399).

103117129 is a wasteful number, since it uses less digits than its factorization.

103117129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21375.

The product of its (nonzero) digits is 378, while the sum is 25.

The square root of 103117129 is about 10154.6604571497. The cubic root of 103117129 is about 468.9324328357.

The spelling of 103117129 in words is "one hundred three million, one hundred seventeen thousand, one hundred twenty-nine".

Divisors: 1 31 157 4867 21187 656797 3326359 103117129