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82067925625 = 547216372
BaseRepresentation
bin100110001101110100…
…0010010101001111001
321211211110021120122221
41030123220102221321
52321033342110000
6101411304244041
75633501600200
oct1143350225171
9254743246587
1082067925625
1131894228224
1213aa4470621
13797b6a274a
143d87676237
152204cec61a
hex131ba12a79

82067925625 has 45 divisors (see below), whose sum is σ = 119368195419. Its totient is φ = 56240772000.

The previous prime is 82067925623. The next prime is 82067925661. The reversal of 82067925625 is 52652976028.

The square root of 82067925625 is 286475.

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

It can be written as a sum of positive squares in 7 ways, for example, as 81100217961 + 967707664 = 284781^2 + 31108^2 .

It is not a de Polignac number, because 82067925625 - 21 = 82067925623 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82067925623) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 50132307 + ... + 50133943.

Almost surely, 282067925625 is an apocalyptic number.

82067925625 is the 286475-th square number.

82067925625 is the 143238-th centered octagonal number.

It is an amenable number.

82067925625 is a deficient number, since it is larger than the sum of its proper divisors (37300269794).

82067925625 is an frugal number, since it uses more digits than its factorization.

82067925625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3308 (or 1649 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 52.

The spelling of 82067925625 in words is "eighty-two billion, sixty-seven million, nine hundred twenty-five thousand, six hundred twenty-five".

Divisors: 1 5 7 25 35 49 125 175 245 625 875 1225 1637 4375 6125 8185 11459 30625 40925 57295 80213 204625 286475 401065 1023125 1432375 2005325 2679769 7161875 10026625 13398845 18758383 50133125 66994225 93791915 131308681 334971125 468959575 656543405 1674855625 2344797875 3282717025 11723989375 16413585125 82067925625