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76825225 = 5217532
BaseRepresentation
bin1001001010001…
…00001010001001
312100120010101201
410211010022021
5124131401400
611342344201
71622001151
oct445041211
9170503351
1076825225
113a402a24
122188b061
1312bbb319
14a2bb761
156b2806a
hex4944289

76825225 has 9 divisors (see below), whose sum is σ = 95317653. Its totient is φ = 61425120.

The previous prime is 76825207. The next prime is 76825237. The reversal of 76825225 is 52252867.

The square root of 76825225 is 8765.

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 36324729 + 40500496 = 6027^2 + 6364^2 .

It is not a de Polignac number, because 76825225 - 219 = 76300937 is a prime.

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, 42949 + ... + 44701.

Almost surely, 276825225 is an apocalyptic number.

76825225 is the 8765-th square number.

76825225 is the 4383-rd centered octagonal number.

It is an amenable number.

76825225 is a deficient number, since it is larger than the sum of its proper divisors (18492428).

76825225 is an frugal number, since it uses more digits than its factorization.

76825225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3516 (or 1758 counting only the distinct ones).

The product of its digits is 67200, while the sum is 37.

The cubic root of 76825225 is about 425.1099600136.

The spelling of 76825225 in words is "seventy-six million, eight hundred twenty-five thousand, two hundred twenty-five".

Divisors: 1 5 25 1753 8765 43825 3073009 15365045 76825225