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6131493 = 321136029
BaseRepresentation
bin10111011000111100100101
3102112111211100
4113120330211
53032201433
6335230313
7103055034
oct27307445
912474740
106131493
113508755
122078399
131368b04
14b5871b
15811b13
hex5d8f25

6131493 has 12 divisors (see below), whose sum is σ = 8936460. Its totient is φ = 4050816.

The previous prime is 6131491. The next prime is 6131507. The reversal of 6131493 is 3941316.

6131493 is a `hidden beast` number, since 613 + 1 + 49 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2683044 + 3448449 = 1638^2 + 1857^2 .

It is not a de Polignac number, because 6131493 - 21 = 6131491 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6131491) 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 11 ways as a sum of consecutive naturals, for example, 1998 + ... + 4031.

It is an arithmetic number, because the mean of its divisors is an integer number (744705).

Almost surely, 26131493 is an apocalyptic number.

It is an amenable number.

6131493 is a deficient number, since it is larger than the sum of its proper divisors (2804967).

6131493 is a wasteful number, since it uses less digits than its factorization.

6131493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6148 (or 6145 counting only the distinct ones).

The product of its digits is 1944, while the sum is 27.

The square root of 6131493 is about 2476.1851707819. The cubic root of 6131493 is about 183.0299153817.

The spelling of 6131493 in words is "six million, one hundred thirty-one thousand, four hundred ninety-three".

Divisors: 1 3 9 113 339 1017 6029 18087 54261 681277 2043831 6131493