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13880360 = 2351326693
BaseRepresentation
bin110100111100…
…110000101000
3222010012021102
4310330300220
512023132420
61213300532
7225660344
oct64746050
928105242
1013880360
11792057a
124794748
132b4cb40
141bb4624
151342a75
hexd3cc28

13880360 has 32 divisors (see below), whose sum is σ = 33634440. Its totient is φ = 5124864.

The previous prime is 13880327. The next prime is 13880371. The reversal of 13880360 is 6308831.

It can be written as a sum of positive squares in 4 ways, for example, as 3678724 + 10201636 = 1918^2 + 3194^2 .

It is a super-4 number, since 4×138803604 (a number of 30 digits) contains 4444 as substring.

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 7 ways as a sum of consecutive naturals, for example, 12827 + ... + 13866.

Almost surely, 213880360 is an apocalyptic number.

13880360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13880360 is an abundant number, since it is smaller than the sum of its proper divisors (19754080).

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

13880360 is a wasteful number, since it uses less digits than its factorization.

13880360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26717 (or 26713 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 13880360 is about 3725.6355162576. The cubic root of 13880360 is about 240.3257151642.

The spelling of 13880360 in words is "thirteen million, eight hundred eighty thousand, three hundred sixty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 65 104 130 260 520 26693 53386 106772 133465 213544 266930 347009 533860 694018 1067720 1388036 1735045 2776072 3470090 6940180 13880360