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13750480 = 245171881
BaseRepresentation
bin110100011101…
…000011010000
3221212121010001
4310131003100
512010003410
61210415344
7224606602
oct64350320
927777101
1013750480
117841a37
124731554
132b059a3
141b7d172
15131933a
hexd1d0d0

13750480 has 20 divisors (see below), whose sum is σ = 31970052. Its totient is φ = 5500160.

The previous prime is 13750469. The next prime is 13750493. The reversal of 13750480 is 8405731.

It can be written as a sum of positive squares in 2 ways, for example, as 7639696 + 6110784 = 2764^2 + 2472^2 .

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85861 + ... + 86020.

Almost surely, 213750480 is an apocalyptic number.

13750480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13750480 is an abundant number, since it is smaller than the sum of its proper divisors (18219572).

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

13750480 is a wasteful number, since it uses less digits than its factorization.

13750480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171894 (or 171888 counting only the distinct ones).

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

The square root of 13750480 is about 3708.1639661698. The cubic root of 13750480 is about 239.5737805559.

The spelling of 13750480 in words is "thirteen million, seven hundred fifty thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 171881 343762 687524 859405 1375048 1718810 2750096 3437620 6875240 13750480