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117147605 = 531755791
BaseRepresentation
bin1101111101110…
…00011111010101
322011102201022012
412332320133111
5214442210410
615342514005
72621511131
oct676703725
9264381265
10117147605
1160143803
1233295905
131b368813
14117b63c1
15a440605
hex6fb87d5

117147605 has 8 divisors (see below), whose sum is σ = 145112064. Its totient is φ = 90694800.

The previous prime is 117147517. The next prime is 117147623. The reversal of 117147605 is 506741711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-117147605 is a prime.

It is a super-2 number, since 2×1171476052 = 27447122714472050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 377741 + ... + 378050.

It is an arithmetic number, because the mean of its divisors is an integer number (18139008).

Almost surely, 2117147605 is an apocalyptic number.

It is an amenable number.

117147605 is a deficient number, since it is larger than the sum of its proper divisors (27964459).

117147605 is an equidigital number, since it uses as much as digits as its factorization.

117147605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755827.

The product of its (nonzero) digits is 5880, while the sum is 32.

The square root of 117147605 is about 10823.4747193311. The cubic root of 117147605 is about 489.3029168807.

The spelling of 117147605 in words is "one hundred seventeen million, one hundred forty-seven thousand, six hundred five".

Divisors: 1 5 31 155 755791 3778955 23429521 117147605