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76528625 = 53612229
BaseRepresentation
bin1001000111110…
…11101111110001
312100000001112112
410203323233301
5124042404000
611332135105
71616324345
oct443735761
9170001475
1076528625
113a2200a8
1221767495
1312b16314
14a241625
156aba235
hex48fbbf1

76528625 has 8 divisors (see below), whose sum is σ = 95507880. Its totient is φ = 61222800.

The previous prime is 76528607. The next prime is 76528633. The reversal of 76528625 is 52682567.

It can be written as a sum of positive squares in 4 ways, for example, as 908209 + 75620416 = 953^2 + 8696^2 .

It is not a de Polignac number, because 76528625 - 216 = 76463089 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 305990 + ... + 306239.

It is an arithmetic number, because the mean of its divisors is an integer number (11938485).

Almost surely, 276528625 is an apocalyptic number.

It is an amenable number.

76528625 is a deficient number, since it is larger than the sum of its proper divisors (18979255).

76528625 is an equidigital number, since it uses as much as digits as its factorization.

76528625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612244 (or 612234 counting only the distinct ones).

The product of its digits is 201600, while the sum is 41.

The square root of 76528625 is about 8748.0640715532. The cubic root of 76528625 is about 424.5621788837.

The spelling of 76528625 in words is "seventy-six million, five hundred twenty-eight thousand, six hundred twenty-five".

Divisors: 1 5 25 125 612229 3061145 15305725 76528625