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82919236 = 222921572
BaseRepresentation
bin1001111000100…
…11111101000100
312210000201210211
410330103331010
5132211403421
612121125204
72024542021
oct474237504
9183021724
1082919236
11428954a4
1223929804
131424304a
14b026548
15742d9e1
hex4f13f44

82919236 has 27 divisors (see below), whose sum is σ = 151248279. Its totient is φ = 39775008.

The previous prime is 82919219. The next prime is 82919279. The reversal of 82919236 is 63291928.

It is a happy number.

The square root of 82919236 is 9106.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 2924100 + 79995136 = 1710^2 + 8944^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 528070 + ... + 528226.

Almost surely, 282919236 is an apocalyptic number.

82919236 is the 9106-th square number.

It is an amenable number.

82919236 is a deficient number, since it is larger than the sum of its proper divisors (68329043).

82919236 is a wasteful number, since it uses less digits than its factorization.

82919236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376 (or 188 counting only the distinct ones).

The product of its digits is 46656, while the sum is 40.

The cubic root of 82919236 is about 436.0655359781.

Multiplying 82919236 by its product of digits (46656), we get a square (3868679874816 = 19668962).

The spelling of 82919236 in words is "eighty-two million, nine hundred nineteen thousand, two hundred thirty-six".

Divisors: 1 2 4 29 58 116 157 314 628 841 1682 3364 4553 9106 18212 24649 49298 98596 132037 264074 528148 714821 1429642 2859284 20729809 41459618 82919236