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13328880 = 2435193779
BaseRepresentation
bin110010110110…
…000111110000
3221002011210020
4302312013300
511403011010
61153403440
7221202465
oct62660760
927064706
1013328880
117584204
124569580
1329b8b16
141aad66c
151284470
hexcb61f0

13328880 has 160 divisors (see below), whose sum is σ = 45235200. Its totient is φ = 3234816.

The previous prime is 13328879. The next prime is 13328881. The reversal of 13328880 is 8882331.

13328880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13328879) and next prime (13328881).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13328881) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 168681 + ... + 168759.

It is an arithmetic number, because the mean of its divisors is an integer number (282720).

Almost surely, 213328880 is an apocalyptic number.

13328880 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 13328880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22617600).

13328880 is an abundant number, since it is smaller than the sum of its proper divisors (31906320).

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

13328880 is a wasteful number, since it uses less digits than its factorization.

13328880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151 (or 145 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 13328880 is about 3650.8738679938. The cubic root of 13328880 is about 237.0998173071.

The spelling of 13328880 in words is "thirteen million, three hundred twenty-eight thousand, eight hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 19 20 24 30 37 38 40 48 57 60 74 76 79 80 95 111 114 120 148 152 158 185 190 222 228 237 240 285 296 304 316 370 380 395 444 456 474 555 570 592 632 703 740 760 790 888 912 948 1110 1140 1185 1264 1406 1480 1501 1520 1580 1776 1896 2109 2220 2280 2370 2812 2923 2960 3002 3160 3515 3792 4218 4440 4503 4560 4740 5624 5846 6004 6320 7030 7505 8436 8769 8880 9006 9480 10545 11248 11692 12008 14060 14615 15010 16872 17538 18012 18960 21090 22515 23384 24016 28120 29230 30020 33744 35076 36024 42180 43845 45030 46768 55537 56240 58460 60040 70152 72048 84360 87690 90060 111074 116920 120080 140304 166611 168720 175380 180120 222148 233840 277685 333222 350760 360240 444296 555370 666444 701520 833055 888592 1110740 1332888 1666110 2221480 2665776 3332220 4442960 6664440 13328880