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820482612 = 223538771471
BaseRepresentation
bin110000111001111…
…001001000110100
32010011212211112220
4300321321020310
53140020420422
6213225442340
726221662405
oct6071711064
92104784486
10820482612
11391160804
121aa9403b0
13100ca4b91
147ad7b9ac
154c070e5c
hex30e79234

820482612 has 48 divisors (see below), whose sum is σ = 1954132992. Its totient is φ = 267845760.

The previous prime is 820482601. The next prime is 820482617. The reversal of 820482612 is 216284028.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (820482617) 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, 557037 + ... + 558507.

It is an arithmetic number, because the mean of its divisors is an integer number (40711104).

Almost surely, 2820482612 is an apocalyptic number.

It is an amenable number.

820482612 is an abundant number, since it is smaller than the sum of its proper divisors (1133650380).

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

820482612 is a wasteful number, since it uses less digits than its factorization.

820482612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2408 (or 2406 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 33.

The square root of 820482612 is about 28644.0676580684. The cubic root of 820482612 is about 936.1737523519.

The spelling of 820482612 in words is "eight hundred twenty million, four hundred eighty-two thousand, six hundred twelve".

Divisors: 1 2 3 4 6 12 53 106 159 212 318 636 877 1471 1754 2631 2942 3508 4413 5262 5884 8826 10524 17652 46481 77963 92962 139443 155926 185924 233889 278886 311852 467778 557772 935556 1290067 2580134 3870201 5160268 7740402 15480804 68373551 136747102 205120653 273494204 410241306 820482612