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13525580 = 225676279
BaseRepresentation
bin110011100110…
…001001001100
3221110011121102
4303212021030
511430304310
61201522232
7222652115
oct63461114
927404542
1013525580
1176a8a72
124643378
132a57503
141b2120c
1512c28a5
hexce624c

13525580 has 12 divisors (see below), whose sum is σ = 28403760. Its totient is φ = 5410224.

The previous prime is 13525559. The next prime is 13525601. The reversal of 13525580 is 8552531.

It is an interprime number because it is at equal distance from previous prime (13525559) and next prime (13525601).

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, 338120 + ... + 338159.

It is an arithmetic number, because the mean of its divisors is an integer number (2366980).

Almost surely, 213525580 is an apocalyptic number.

13525580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13525580 is an abundant number, since it is smaller than the sum of its proper divisors (14878180).

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

13525580 is a wasteful number, since it uses less digits than its factorization.

13525580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676288 (or 676286 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 29.

The square root of 13525580 is about 3677.7139638640. The cubic root of 13525580 is about 238.2604544586.

The spelling of 13525580 in words is "thirteen million, five hundred twenty-five thousand, five hundred eighty".

Divisors: 1 2 4 5 10 20 676279 1352558 2705116 3381395 6762790 13525580