Search a number
-
+
13201916420 = 2257118572673
BaseRepresentation
bin11000100101110010…
…10100001000000100
31021002001201211201102
430102321110020010
5204014142311140
610022002515232
7645104303150
oct142271241004
937061654642
1013201916420
115665157230
122685365b18
13132517a384
148d34ca060
15524038e15
hex312e54204

13201916420 has 48 divisors (see below), whose sum is σ = 34565021568. Its totient is φ = 4114882560.

The previous prime is 13201916419. The next prime is 13201916449. The reversal of 13201916420 is 2461910231.

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, 4284797 + ... + 4287876.

It is an arithmetic number, because the mean of its divisors is an integer number (720104616).

Almost surely, 213201916420 is an apocalyptic number.

13201916420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13201916420 is an abundant number, since it is smaller than the sum of its proper divisors (21363105148).

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

13201916420 is a wasteful number, since it uses less digits than its factorization.

13201916420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8572700 (or 8572698 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The spelling of 13201916420 in words is "thirteen billion, two hundred one million, nine hundred sixteen thousand, four hundred twenty".

Divisors: 1 2 4 5 7 10 11 14 20 22 28 35 44 55 70 77 110 140 154 220 308 385 770 1540 8572673 17145346 34290692 42863365 60008711 85726730 94299403 120017422 171453460 188598806 240034844 300043555 377197612 471497015 600087110 660095821 942994030 1200174220 1320191642 1885988060 2640383284 3300479105 6600958210 13201916420