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13308880 = 2451367191
BaseRepresentation
bin110010110001…
…001111010000
3221001011100111
4302301033100
511401341010
61153131104
7221060254
oct62611720
927034314
1013308880
117570182
124559a94
1329ac9a0
141aa6264
15127d58a
hexcb13d0

13308880 has 80 divisors (see below), whose sum is σ = 33997824. Its totient is φ = 4815360.

The previous prime is 13308853. The next prime is 13308899. The reversal of 13308880 is 8880331.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 69585 + ... + 69775.

Almost surely, 213308880 is an apocalyptic number.

13308880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13308880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16998912).

13308880 is an abundant number, since it is smaller than the sum of its proper divisors (20688944).

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

13308880 is a wasteful number, since it uses less digits than its factorization.

13308880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284 (or 278 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 13308880 is about 3648.1337694772. The cubic root of 13308880 is about 236.9811684254.

The spelling of 13308880 in words is "thirteen million, three hundred eight thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 13 16 20 26 40 52 65 67 80 104 130 134 191 208 260 268 335 382 520 536 670 764 871 955 1040 1072 1340 1528 1742 1910 2483 2680 3056 3484 3820 4355 4966 5360 6968 7640 8710 9932 12415 12797 13936 15280 17420 19864 24830 25594 34840 39728 49660 51188 63985 69680 99320 102376 127970 166361 198640 204752 255940 332722 511880 665444 831805 1023760 1330888 1663610 2661776 3327220 6654440 13308880