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117818042 = 2311900291
BaseRepresentation
bin1110000010111…
…00001010111010
322012200202222012
413001130022322
5220130134132
615405125522
72630302556
oct701341272
9265622865
10117818042
1160561491
12335598a2
131b541a24
141190c866
15a5240b2
hex705c2ba

117818042 has 8 divisors (see below), whose sum is σ = 182428032. Its totient is φ = 57008700.

The previous prime is 117818009. The next prime is 117818047. The reversal of 117818042 is 240818711.

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

It is not an unprimeable number, because it can be changed into a prime (117818047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 950084 + ... + 950207.

It is an arithmetic number, because the mean of its divisors is an integer number (22803504).

Almost surely, 2117818042 is an apocalyptic number.

117818042 is a deficient number, since it is larger than the sum of its proper divisors (64609990).

117818042 is a wasteful number, since it uses less digits than its factorization.

117818042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1900324.

The product of its (nonzero) digits is 3584, while the sum is 32.

The square root of 117818042 is about 10854.4019641802. The cubic root of 117818042 is about 490.2345704607.

The spelling of 117818042 in words is "one hundred seventeen million, eight hundred eighteen thousand, forty-two".

Divisors: 1 2 31 62 1900291 3800582 58909021 117818042