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82514920 = 2352062873
BaseRepresentation
bin1001110101100…
…01001111101000
312202021012012011
410322301033220
5132110434140
612104325304
72021236165
oct472611750
9182235164
1082514920
1142639754
1223773834
1314130cc7
14ad5d06c
15739dcea
hex4eb13e8

82514920 has 16 divisors (see below), whose sum is σ = 185658660. Its totient is φ = 33005952.

The previous prime is 82514917. The next prime is 82514933. The reversal of 82514920 is 2941528.

It can be written as a sum of positive squares in 2 ways, for example, as 80389156 + 2125764 = 8966^2 + 1458^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1031397 + ... + 1031476.

Almost surely, 282514920 is an apocalyptic number.

It is an amenable number.

82514920 is an abundant number, since it is smaller than the sum of its proper divisors (103143740).

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

82514920 is a wasteful number, since it uses less digits than its factorization.

82514920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2062884 (or 2062880 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 82514920 is about 9083.7723441310. The cubic root of 82514920 is about 435.3556258634.

The spelling of 82514920 in words is "eighty-two million, five hundred fourteen thousand, nine hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 2062873 4125746 8251492 10314365 16502984 20628730 41257460 82514920