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117936893 = 237172221
BaseRepresentation
bin1110000011110…
…01001011111101
322012220211000002
413001321023331
5220142440033
615411444045
72631306224
oct701711375
9265824002
10117936893
1160632808
12335b6625
131b583b59
141193dcbb
15a5493e8
hex70792fd

117936893 has 8 divisors (see below), whose sum is σ = 124799616. Its totient is φ = 111218800.

The previous prime is 117936887. The next prime is 117936919. The reversal of 117936893 is 398639711.

It is a happy number.

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

It is not a de Polignac number, because 117936893 - 218 = 117674749 is a prime.

It is a super-2 number, since 2×1179368932 = 27818221460986898, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117936883) 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, 34478 + ... + 37743.

It is an arithmetic number, because the mean of its divisors is an integer number (15599952).

Almost surely, 2117936893 is an apocalyptic number.

It is an amenable number.

117936893 is a deficient number, since it is larger than the sum of its proper divisors (6862723).

117936893 is an equidigital number, since it uses as much as digits as its factorization.

117936893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72315.

The product of its digits is 244944, while the sum is 47.

The square root of 117936893 is about 10859.8753676090. The cubic root of 117936893 is about 490.3993592797.

The spelling of 117936893 in words is "one hundred seventeen million, nine hundred thirty-six thousand, eight hundred ninety-three".

Divisors: 1 23 71 1633 72221 1661083 5127691 117936893