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13072490 = 2517131587
BaseRepresentation
bin110001110111…
…100001101010
3220121011002022
4301313201222
511321304430
61144104442
7216054134
oct61674152
926534068
1013072490
117419612
124465122
132929202
141a44054
1512334e5
hexc7786a

13072490 has 32 divisors (see below), whose sum is σ = 25147584. Its totient is φ = 4875520.

The previous prime is 13072457. The next prime is 13072517. The reversal of 13072490 is 9427031.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21977 + ... + 22563.

It is an arithmetic number, because the mean of its divisors is an integer number (785862).

Almost surely, 213072490 is an apocalyptic number.

13072490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13072490 is a deficient number, since it is larger than the sum of its proper divisors (12075094).

13072490 is a wasteful number, since it uses less digits than its factorization.

13072490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 742.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 13072490 is about 3615.5898550582. The cubic root of 13072490 is about 235.5697057313.

The spelling of 13072490 in words is "thirteen million, seventy-two thousand, four hundred ninety".

Divisors: 1 2 5 10 17 34 85 131 170 262 587 655 1174 1310 2227 2935 4454 5870 9979 11135 19958 22270 49895 76897 99790 153794 384485 768970 1307249 2614498 6536245 13072490