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7138079 = 131732299
BaseRepresentation
bin11011001110101100011111
3111102122121022
4123032230133
53311404304
6412554355
7114446504
oct33165437
914378538
107138079
114035a43
1224829bb
13162c020
14d3b4ab
1595eebe
hex6ceb1f

7138079 has 8 divisors (see below), whose sum is σ = 8139600. Its totient is φ = 6201216.

The previous prime is 7138069. The next prime is 7138121. The reversal of 7138079 is 9708317.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7138079 - 212 = 7133983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7138009) 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, 15929 + ... + 16370.

It is an arithmetic number, because the mean of its divisors is an integer number (1017450).

Almost surely, 27138079 is an apocalyptic number.

7138079 is a deficient number, since it is larger than the sum of its proper divisors (1001521).

7138079 is a wasteful number, since it uses less digits than its factorization.

7138079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32329.

The product of its (nonzero) digits is 10584, while the sum is 35.

The square root of 7138079 is about 2671.7183609056. The cubic root of 7138079 is about 192.5427262219.

The spelling of 7138079 in words is "seven million, one hundred thirty-eight thousand, seventy-nine".

Divisors: 1 13 17 221 32299 419887 549083 7138079