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7138026 = 232728093
BaseRepresentation
bin11011001110101011101010
3111102122112100
4123032223222
53311404101
6412554230
7114446400
oct33165352
914378470
107138026
1140359a5
122482976
13162bcac
14d3b470
1595ee86
hex6ceaea

7138026 has 36 divisors (see below), whose sum is σ = 17992962. Its totient is φ = 2039184.

The previous prime is 7138009. The next prime is 7138039. The reversal of 7138026 is 6208317.

It can be written as a sum of positive squares in only one way, i.e., 6245001 + 893025 = 2499^2 + 945^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3165 + ... + 4928.

Almost surely, 27138026 is an apocalyptic number.

7138026 is an abundant number, since it is smaller than the sum of its proper divisors (10854936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7138026 is a wasteful number, since it uses less digits than its factorization.

7138026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8115 (or 8105 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 7138026 is about 2671.7084421770. The cubic root of 7138026 is about 192.5422496796.

The spelling of 7138026 in words is "seven million, one hundred thirty-eight thousand, twenty-six".

Divisors: 1 2 3 6 7 9 14 18 21 42 49 63 98 126 147 294 441 882 8093 16186 24279 48558 56651 72837 113302 145674 169953 339906 396557 509859 793114 1019718 1189671 2379342 3569013 7138026