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13224030320 = 245237186973
BaseRepresentation
bin11000101000011011…
…01011000001110000
31021010121100100021202
430110031223001300
5204040322432240
610024112510332
7645463255154
oct142415530160
937117310252
1013224030320
115676690786
12269084b3a8
131329920a17
148d6405064
15525e56315
hex31436b070

13224030320 has 40 divisors (see below), whose sum is σ = 32082651936. Its totient is φ = 5059628288.

The previous prime is 13224030307. The next prime is 13224030349. The reversal of 13224030320 is 2303042231.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 13224030292 and 13224030301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3591647 + ... + 3595326.

Almost surely, 213224030320 is an apocalyptic number.

13224030320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13224030320 is an abundant number, since it is smaller than the sum of its proper divisors (18858621616).

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

13224030320 is a wasteful number, since it uses less digits than its factorization.

13224030320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7187009 (or 7187003 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 13224030320 its reverse (2303042231), we get a palindrome (15527072551).

The spelling of 13224030320 in words is "thirteen billion, two hundred twenty-four million, thirty thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 23 40 46 80 92 115 184 230 368 460 920 1840 7186973 14373946 28747892 35934865 57495784 71869730 114991568 143739460 165300379 287478920 330600758 574957840 661201516 826501895 1322403032 1653003790 2644806064 3306007580 6612015160 13224030320