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82980212 = 22710727697
BaseRepresentation
bin1001111001000…
…10110101110100
312210010211110012
410330202311310
5132220331322
612122315352
72025214550
oct474426564
9183124405
1082980212
1142927297
1223958b58
1314264a23
14b040860
157441ae2
hex4f22d74

82980212 has 24 divisors (see below), whose sum is σ = 167517504. Its totient is φ = 35229312.

The previous prime is 82980197. The next prime is 82980221. The reversal of 82980212 is 21208928.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10853 + ... + 16844.

It is an arithmetic number, because the mean of its divisors is an integer number (6979896).

Almost surely, 282980212 is an apocalyptic number.

It is an amenable number.

82980212 is an abundant number, since it is smaller than the sum of its proper divisors (84537292).

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

82980212 is a wasteful number, since it uses less digits than its factorization.

82980212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27815 (or 27813 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 82980212 is about 9109.3475068196. The cubic root of 82980212 is about 436.1723990672.

The spelling of 82980212 in words is "eighty-two million, nine hundred eighty thousand, two hundred twelve".

Divisors: 1 2 4 7 14 28 107 214 428 749 1498 2996 27697 55394 110788 193879 387758 775516 2963579 5927158 11854316 20745053 41490106 82980212