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7000139 = 1672251
BaseRepresentation
bin11010101101000001001011
3111011122101102
4122231001023
53243001024
6410012015
7113333366
oct32550113
914148342
107000139
113a51343
12241700b
1315b12c3
14d030dd
159341ae
hex6ad04b

7000139 has 6 divisors (see below), whose sum is σ = 7070364. Its totient is φ = 6930500.

The previous prime is 7000129. The next prime is 7000157. The reversal of 7000139 is 9310007.

7000139 = T202 + T203 + ... + T368.

It is a de Polignac number, because none of the positive numbers 2k-7000139 is a prime.

It is a Duffinian number.

It is a plaindrome in base 7.

It is a zygodrome in base 7.

It is a self number, because there is not a number n which added to its sum of digits gives 7000139.

It is not an unprimeable number, because it can be changed into a prime (7000109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27764 + ... + 28014.

It is an arithmetic number, because the mean of its divisors is an integer number (1178394).

Almost surely, 27000139 is an apocalyptic number.

7000139 is a deficient number, since it is larger than the sum of its proper divisors (70225).

7000139 is an equidigital number, since it uses as much as digits as its factorization.

7000139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585 (or 418 counting only the distinct ones).

The product of its (nonzero) digits is 189, while the sum is 20.

The square root of 7000139 is about 2645.7775794651. Note that the first 3 decimals coincide. The cubic root of 7000139 is about 191.2943844471.

The spelling of 7000139 in words is "seven million, one hundred thirty-nine", and thus it is an aban number.

Divisors: 1 167 251 27889 41917 7000139