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82297025 = 523291881
BaseRepresentation
bin1001110011111…
…00000011000001
312201212010021222
410321330003001
5132032001100
612055524425
72016341006
oct471740301
9181763258
1082297025
11424aaa78
1223689715
1314085a85
14ad038ad
157359485
hex4e7c0c1

82297025 has 6 divisors (see below), whose sum is σ = 102048342. Its totient is φ = 65837600.

The previous prime is 82296997. The next prime is 82297027. The reversal of 82297025 is 52079228.

It can be written as a sum of positive squares in 3 ways, for example, as 21893041 + 60403984 = 4679^2 + 7772^2 .

It is not a de Polignac number, because 82297025 - 216 = 82231489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82297027) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1645916 + ... + 1645965.

It is an arithmetic number, because the mean of its divisors is an integer number (17008057).

Almost surely, 282297025 is an apocalyptic number.

It is an amenable number.

82297025 is a deficient number, since it is larger than the sum of its proper divisors (19751317).

82297025 is a wasteful number, since it uses less digits than its factorization.

82297025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3291891 (or 3291886 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 82297025 is about 9071.7707753228. The cubic root of 82297025 is about 434.9720773022.

The spelling of 82297025 in words is "eighty-two million, two hundred ninety-seven thousand, twenty-five".

Divisors: 1 5 25 3291881 16459405 82297025