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117908349 = 31326911239
BaseRepresentation
bin1110000011100…
…10001101111101
322012212100211220
413001302031331
5220141031344
615411103553
72631130056
oct701621575
9265770756
10117908349
1160613319
12335a1bb9
131b573b70
141193372d
15a540c19
hex707237d

117908349 has 16 divisors (see below), whose sum is σ = 169948800. Its totient is φ = 72282816.

The previous prime is 117908347. The next prime is 117908377. The reversal of 117908349 is 943809711.

It is a happy number.

It is not a de Polignac number, because 117908349 - 21 = 117908347 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 117908349.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117908347) 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, 4872 + ... + 16110.

It is an arithmetic number, because the mean of its divisors is an integer number (10621800).

Almost surely, 2117908349 is an apocalyptic number.

It is an amenable number.

117908349 is a deficient number, since it is larger than the sum of its proper divisors (52040451).

117908349 is a wasteful number, since it uses less digits than its factorization.

117908349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11524.

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 117908349 is about 10858.5610925205. The cubic root of 117908349 is about 490.3597926708.

The spelling of 117908349 in words is "one hundred seventeen million, nine hundred eight thousand, three hundred forty-nine".

Divisors: 1 3 13 39 269 807 3497 10491 11239 33717 146107 438321 3023291 9069873 39302783 117908349