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6117993 = 327213873
BaseRepresentation
bin10111010101101001101001
3102111211022100
4113111221221
53031233433
6335044013
7103000500
oct27255151
912454270
106117993
1134a95a2
122070609
13136291b
14b53837
1580cb13
hex5d5a69

6117993 has 18 divisors (see below), whose sum is σ = 10280634. Its totient is φ = 3495744.

The previous prime is 6117983. The next prime is 6118001. The reversal of 6117993 is 3997116.

It can be written as a sum of positive squares in only one way, i.e., 5143824 + 974169 = 2268^2 + 987^2 .

It is not a de Polignac number, because 6117993 - 26 = 6117929 is a prime.

6117993 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6117983) 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 17 ways as a sum of consecutive naturals, for example, 6496 + ... + 7377.

Almost surely, 26117993 is an apocalyptic number.

6117993 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

It is an amenable number.

6117993 is a deficient number, since it is larger than the sum of its proper divisors (4162641).

6117993 is a wasteful number, since it uses less digits than its factorization.

6117993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13893 (or 13883 counting only the distinct ones).

The product of its digits is 10206, while the sum is 36.

The square root of 6117993 is about 2473.4577012757. The cubic root of 6117993 is about 182.8954881161.

The spelling of 6117993 in words is "six million, one hundred seventeen thousand, nine hundred ninety-three".

Divisors: 1 3 7 9 21 49 63 147 441 13873 41619 97111 124857 291333 679777 873999 2039331 6117993