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10513880 = 2351320219
BaseRepresentation
bin101000000110…
…110111011000
3201210011022222
4220012313120
510142421010
61013203212
7155236466
oct50066730
921704288
1010513880
115a31263
123630508
132241740
141579836
15dca355
hexa06dd8

10513880 has 32 divisors (see below), whose sum is σ = 25477200. Its totient is φ = 3881856.

The previous prime is 10513879. The next prime is 10513889. The reversal of 10513880 is 8831501.

It is a super-2 number, since 2×105138802 = 221083345308800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10513889) by changing a digit.

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, 9590 + ... + 10629.

Almost surely, 210513880 is an apocalyptic number.

10513880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10513880 is an abundant number, since it is smaller than the sum of its proper divisors (14963320).

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

10513880 is a wasteful number, since it uses less digits than its factorization.

10513880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20243 (or 20239 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 26.

The square root of 10513880 is about 3242.5113723779. The cubic root of 10513880 is about 219.0724029628.

The spelling of 10513880 in words is "ten million, five hundred thirteen thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 65 104 130 260 520 20219 40438 80876 101095 161752 202190 262847 404380 525694 808760 1051388 1314235 2102776 2628470 5256940 10513880