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78116141986 = 2192055687947
BaseRepresentation
bin100100011000000010…
…1011011101110100010
321110122001022011121221
41020300011123232202
52234440213020421
655515220005254
75433535152121
oct1106005335642
9243561264557
1078116141986
1130146586733
1213180b3082a
13749ba6362c
143ad08b3ab8
152072ded841
hex123015bba2

78116141986 has 8 divisors (see below), whose sum is σ = 123341276880. Its totient is φ = 37002383028.

The previous prime is 78116141981. The next prime is 78116142031. The reversal of 78116141986 is 68914161187.

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

It is a super-2 number, since 2×781161419862 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78116141981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1027843936 + ... + 1027844011.

It is an arithmetic number, because the mean of its divisors is an integer number (15417659610).

Almost surely, 278116141986 is an apocalyptic number.

78116141986 is a deficient number, since it is larger than the sum of its proper divisors (45225134894).

78116141986 is a wasteful number, since it uses less digits than its factorization.

78116141986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2055687968.

The product of its digits is 580608, while the sum is 52.

The spelling of 78116141986 in words is "seventy-eight billion, one hundred sixteen million, one hundred forty-one thousand, nine hundred eighty-six".

Divisors: 1 2 19 38 2055687947 4111375894 39058070993 78116141986