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50013111252 = 223132271412321
BaseRepresentation
bin101110100101000000…
…111000001111010100
311210002111111021212210
4232211000320033110
51304411324030002
634550430313420
73420241300656
oct564500701724
9153074437783
1050013111252
111a2351087a5
129839358870
1349406b0770
1425c63846d6
15147aad496c
hexba50383d4

50013111252 has 48 divisors (see below), whose sum is σ = 126227691072. Its totient is φ = 15320847360.

The previous prime is 50013111251. The next prime is 50013111259. The reversal of 50013111252 is 25211131005.

It is a super-2 number, since 2×500131112522 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50013111251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 670749 + ... + 741572.

It is an arithmetic number, because the mean of its divisors is an integer number (2629743564).

Almost surely, 250013111252 is an apocalyptic number.

50013111252 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

50013111252 is an abundant number, since it is smaller than the sum of its proper divisors (76214579820).

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

50013111252 is a wasteful number, since it uses less digits than its factorization.

50013111252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1412568 (or 1412566 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 21.

Adding to 50013111252 its reverse (25211131005), we get a palindrome (75224242257).

The spelling of 50013111252 in words is "fifty billion, thirteen million, one hundred eleven thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 227 454 681 908 1362 2724 2951 5902 8853 11804 17706 35412 1412321 2824642 4236963 5649284 8473926 16947852 18360173 36720346 55080519 73440692 110161038 220322076 320596867 641193734 961790601 1282387468 1923581202 3847162404 4167759271 8335518542 12503277813 16671037084 25006555626 50013111252