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7137994 = 2171491409
BaseRepresentation
bin11011001110101011001010
3111102122111011
4123032223022
53311403434
6412554134
7114446323
oct33165312
914378434
107137994
114035976
12248294a
13162bc86
14d3b44a
1595ee64
hex6ceaca

7137994 has 16 divisors (see below), whose sum is σ = 11421000. Its totient is φ = 3334144.

The previous prime is 7137989. The next prime is 7138009. The reversal of 7137994 is 4997317.

It can be written as a sum of positive squares in 4 ways, for example, as 3470769 + 3667225 = 1863^2 + 1915^2 .

It is an unprimeable number.

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, 4362 + ... + 5770.

Almost surely, 27137994 is an apocalyptic number.

7137994 is a deficient number, since it is larger than the sum of its proper divisors (4283006).

7137994 is a wasteful number, since it uses less digits than its factorization.

7137994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1577.

The product of its digits is 47628, while the sum is 40.

The square root of 7137994 is about 2671.7024534929. The cubic root of 7137994 is about 192.5419619548.

The spelling of 7137994 in words is "seven million, one hundred thirty-seven thousand, nine hundred ninety-four".

Divisors: 1 2 17 34 149 298 1409 2533 2818 5066 23953 47906 209941 419882 3568997 7137994