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117108481 = 722389969
BaseRepresentation
bin1101111101011…
…10111100000001
322011100201122011
412332232330001
5214434432411
615342012521
72621256100
oct676567401
9264321564
10117108481
1160117376
1233277141
131b353a79
14117a6037
15a433c21
hex6faef01

117108481 has 6 divisors (see below), whose sum is σ = 136228290. Its totient is φ = 100378656.

The previous prime is 117108463. The next prime is 117108493. The reversal of 117108481 is 184801711.

It can be written as a sum of positive squares in only one way, i.e., 81288256 + 35820225 = 9016^2 + 5985^2 .

It is not a de Polignac number, because 117108481 - 25 = 117108449 is a prime.

It is a super-2 number, since 2×1171084812 = 27428792644254722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117108281) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1194936 + ... + 1195033.

It is an arithmetic number, because the mean of its divisors is an integer number (22704715).

Almost surely, 2117108481 is an apocalyptic number.

It is an amenable number.

117108481 is a deficient number, since it is larger than the sum of its proper divisors (19119809).

117108481 is an equidigital number, since it uses as much as digits as its factorization.

117108481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2389983 (or 2389976 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 31.

The square root of 117108481 is about 10821.6672005750. The cubic root of 117108481 is about 489.2484396855.

The spelling of 117108481 in words is "one hundred seventeen million, one hundred eight thousand, four hundred eighty-one".

Divisors: 1 7 49 2389969 16729783 117108481