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159930939 = 377615759
BaseRepresentation
bin10011000100001…
…01101000111011
3102010221100000010
421202011220323
5311420242224
623511513003
73651250650
oct1142055073
9363840003
10159930939
1182305533
1245688763
13271981bc
1417351c27
15e091e29
hex9885a3b

159930939 has 8 divisors (see below), whose sum is σ = 243704320. Its totient is φ = 91389096.

The previous prime is 159930931. The next prime is 159930971. The reversal of 159930939 is 939039951.

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 159930939 - 23 = 159930931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (159930931) 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 7 ways as a sum of consecutive naturals, for example, 3807859 + ... + 3807900.

It is an arithmetic number, because the mean of its divisors is an integer number (30463040).

Almost surely, 2159930939 is an apocalyptic number.

159930939 is a deficient number, since it is larger than the sum of its proper divisors (83773381).

159930939 is an equidigital number, since it uses as much as digits as its factorization.

159930939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7615769.

The product of its (nonzero) digits is 295245, while the sum is 48.

The square root of 159930939 is about 12646.3804703164. The cubic root of 159930939 is about 542.8054035803.

The spelling of 159930939 in words is "one hundred fifty-nine million, nine hundred thirty thousand, nine hundred thirty-nine".

Divisors: 1 3 7 21 7615759 22847277 53310313 159930939