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13628080 = 245170351
BaseRepresentation
bin110011111111…
…001010110000
3221122101012201
4303333022300
511442044310
61204032544
7223560004
oct63771260
927571181
1013628080
117768a84
124692754
132a9206b
141b4a704
1512e2e3a
hexcff2b0

13628080 has 20 divisors (see below), whose sum is σ = 31685472. Its totient is φ = 5451200.

The previous prime is 13628063. The next prime is 13628081. The reversal of 13628080 is 8082631.

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (13628081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85096 + ... + 85255.

Almost surely, 213628080 is an apocalyptic number.

13628080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13628080 is an abundant number, since it is smaller than the sum of its proper divisors (18057392).

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

13628080 is a wasteful number, since it uses less digits than its factorization.

13628080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170364 (or 170358 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 13628080 is about 3691.6229493273. The cubic root of 13628080 is about 238.8608049032.

The spelling of 13628080 in words is "thirteen million, six hundred twenty-eight thousand, eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 170351 340702 681404 851755 1362808 1703510 2725616 3407020 6814040 13628080