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117914251 = 7131295761
BaseRepresentation
bin1110000011100…
…11101010001011
322012212122221111
413001303222023
5220141224001
615411151151
72631153220
oct701635213
9265778844
10117914251
11606177a4
12335a54b7
131b576760
1411935947
15a542851
hex7073a8b

117914251 has 8 divisors (see below), whose sum is σ = 145125344. Its totient is φ = 93294720.

The previous prime is 117914249. The next prime is 117914287. The reversal of 117914251 is 152419711.

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 117914251 - 21 = 117914249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (117914201) 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, 647790 + ... + 647971.

It is an arithmetic number, because the mean of its divisors is an integer number (18140668).

Almost surely, 2117914251 is an apocalyptic number.

117914251 is a deficient number, since it is larger than the sum of its proper divisors (27211093).

117914251 is a wasteful number, since it uses less digits than its factorization.

117914251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1295781.

The product of its digits is 2520, while the sum is 31.

The square root of 117914251 is about 10858.8328562512. The cubic root of 117914251 is about 490.3679743227.

The spelling of 117914251 in words is "one hundred seventeen million, nine hundred fourteen thousand, two hundred fifty-one".

Divisors: 1 7 13 91 1295761 9070327 16844893 117914251