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117185061 = 3725721713
BaseRepresentation
bin1101111110000…
…01101000100101
322011111121200110
412333001220211
5214444410221
615343403233
72622025260
oct677015045
9264447613
10117185061
1160169964
12332b3519
131b37c896
14117c5cd7
15a44b776
hex6fc1a25

117185061 has 16 divisors (see below), whose sum is σ = 179270784. Its totient is φ = 66699264.

The previous prime is 117185051. The next prime is 117185113. The reversal of 117185061 is 160581711.

It is not a de Polignac number, because 117185061 - 26 = 117184997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117185041) 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, 5460 + ... + 16253.

It is an arithmetic number, because the mean of its divisors is an integer number (11204424).

Almost surely, 2117185061 is an apocalyptic number.

It is an amenable number.

117185061 is a deficient number, since it is larger than the sum of its proper divisors (62085723).

117185061 is a wasteful number, since it uses less digits than its factorization.

117185061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21980.

The product of its (nonzero) digits is 1680, while the sum is 30.

The square root of 117185061 is about 10825.2048941348. The cubic root of 117185061 is about 489.3550601493.

The spelling of 117185061 in words is "one hundred seventeen million, one hundred eighty-five thousand, sixty-one".

Divisors: 1 3 7 21 257 771 1799 5397 21713 65139 151991 455973 5580241 16740723 39061687 117185061