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7139896 = 2319107439
BaseRepresentation
bin11011001111001000111000
3111102202002121
4123033020320
53311434041
6413011024
7114455011
oct33171070
914382077
107139896
114037345
122483a74
13162caba
14d3c008
159607d1
hex6cf238

7139896 has 32 divisors (see below), whose sum is σ = 14256000. Its totient is φ = 3342816.

The previous prime is 7139861. The next prime is 7139897. The reversal of 7139896 is 6989317.

It is a super-2 number, since 2×71398962 = 101956229781632, which contains 22 as substring.

Its product of digits (81648) is a multiple of the sum of its prime divisors (567).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7139897) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16045 + ... + 16483.

It is an arithmetic number, because the mean of its divisors is an integer number (445500).

Almost surely, 27139896 is an apocalyptic number.

7139896 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

7139896 is a deficient number, since it is larger than the sum of its proper divisors (7116104).

7139896 is a wasteful number, since it uses less digits than its factorization.

7139896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571 (or 567 counting only the distinct ones).

The product of its digits is 81648, while the sum is 43.

The square root of 7139896 is about 2672.0583825957. The cubic root of 7139896 is about 192.5590621041.

It can be divided in two parts, 713 and 9896, that added together give a square (10609 = 1032).

The spelling of 7139896 in words is "seven million, one hundred thirty-nine thousand, eight hundred ninety-six".

Divisors: 1 2 4 8 19 38 76 107 152 214 428 439 856 878 1756 2033 3512 4066 8132 8341 16264 16682 33364 46973 66728 93946 187892 375784 892487 1784974 3569948 7139896