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13058740 = 225652937
BaseRepresentation
bin110001110100…
…001010110100
3220120110020001
4301310022310
511320334430
61143521044
7215666062
oct61641264
926513201
1013058740
11740a252
124459184
132922b86
141a3d032
15122e3ca
hexc742b4

13058740 has 12 divisors (see below), whose sum is σ = 27423396. Its totient is φ = 5223488.

The previous prime is 13058701. The next prime is 13058753. The reversal of 13058740 is 4785031.

It can be written as a sum of positive squares in 2 ways, for example, as 8444836 + 4613904 = 2906^2 + 2148^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13058699 and 13058708.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 326449 + ... + 326488.

It is an arithmetic number, because the mean of its divisors is an integer number (2285283).

Almost surely, 213058740 is an apocalyptic number.

13058740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13058740 is an abundant number, since it is smaller than the sum of its proper divisors (14364656).

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

13058740 is a wasteful number, since it uses less digits than its factorization.

13058740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652946 (or 652944 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 13058740 is about 3613.6878669857. The cubic root of 13058740 is about 235.4870838852.

The spelling of 13058740 in words is "thirteen million, fifty-eight thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 652937 1305874 2611748 3264685 6529370 13058740