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22012830372 = 22313419336773
BaseRepresentation
bin10100100000000100…
…010010001010100100
32002211010000122102210
4110200010102022210
5330040241032442
614040151203420
71406332654011
oct244004221244
962733018383
1022012830372
11937673a2a5
124324076570
1320ca6c4c20
1410cb760708
1588c81519c
hex5201122a4

22012830372 has 48 divisors (see below), whose sum is σ = 55446471360. Its totient is φ = 6756993408.

The previous prime is 22012830347. The next prime is 22012830373. The reversal of 22012830372 is 27303821022.

It is not an unprimeable number, because it can be changed into a prime (22012830373) 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, 103023 + ... + 233750.

It is an arithmetic number, because the mean of its divisors is an integer number (1155134820).

Almost surely, 222012830372 is an apocalyptic number.

It is an amenable number.

22012830372 is an abundant number, since it is smaller than the sum of its proper divisors (33433640988).

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

22012830372 is a wasteful number, since it uses less digits than its factorization.

22012830372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337212 (or 337210 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The spelling of 22012830372 in words is "twenty-two billion, twelve million, eight hundred thirty thousand, three hundred seventy-two".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 419 838 1257 1676 2514 5028 5447 10894 16341 21788 32682 65364 336773 673546 1010319 1347092 2020638 4041276 4378049 8756098 13134147 17512196 26268294 52536588 141107887 282215774 423323661 564431548 846647322 1693294644 1834402531 3668805062 5503207593 7337610124 11006415186 22012830372