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13205030232 = 2331274679277
BaseRepresentation
bin11000100110001010…
…01100010101011000
31021002021121001001210
430103011030111120
5204020441431412
610022153343120
7645142622262
oct142305142530
937067531053
1013205030232
115666993729
122686407aa0
1313259ca774
148d3a9ab32
1552445183c
hex31314c558

13205030232 has 64 divisors (see below), whose sum is σ = 33347358720. Its totient is φ = 4357196928.

The previous prime is 13205030221. The next prime is 13205030257. The reversal of 13205030232 is 23203050231.

It is a junction number, because it is equal to n+sod(n) for n = 13205030199 and 13205030208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1418778 + ... + 1428054.

It is an arithmetic number, because the mean of its divisors is an integer number (521052480).

Almost surely, 213205030232 is an apocalyptic number.

13205030232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13205030232 is an abundant number, since it is smaller than the sum of its proper divisors (20142328488).

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

13205030232 is a wasteful number, since it uses less digits than its factorization.

13205030232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9880 (or 9876 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 21.

Adding to 13205030232 its reverse (23203050231), we get a palindrome (36408080463).

The spelling of 13205030232 in words is "thirteen billion, two hundred five million, thirty thousand, two hundred thirty-two".

Divisors: 1 2 3 4 6 8 12 24 127 254 381 467 508 762 934 1016 1401 1524 1868 2802 3048 3736 5604 9277 11208 18554 27831 37108 55662 59309 74216 111324 118618 177927 222648 237236 355854 474472 711708 1178179 1423416 2356358 3534537 4332359 4712716 7069074 8664718 9425432 12997077 14138148 17329436 25994154 28276296 34658872 51988308 103976616 550209593 1100419186 1650628779 2200838372 3301257558 4401676744 6602515116 13205030232