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76630025 = 524174761
BaseRepresentation
bin1001001000101…
…00100000001001
312100012012122002
410210110200021
5124104130100
611334240345
71620226103
oct444244011
9170165562
1076630025
113a28a2aa
12217b60b5
1312b50514
14a26a573
156ada2d5
hex4914809

76630025 has 12 divisors (see below), whose sum is σ = 97340124. Its totient is φ = 59808000.

The previous prime is 76630007. The next prime is 76630031. The reversal of 76630025 is 52003667.

It can be written as a sum of positive squares in 6 ways, for example, as 19642624 + 56987401 = 4432^2 + 7549^2 .

It is not a de Polignac number, because 76630025 - 26 = 76629961 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 76630025.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36356 + ... + 38405.

It is an arithmetic number, because the mean of its divisors is an integer number (8111677).

Almost surely, 276630025 is an apocalyptic number.

It is an amenable number.

76630025 is a deficient number, since it is larger than the sum of its proper divisors (20710099).

76630025 is a wasteful number, since it uses less digits than its factorization.

76630025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74812 (or 74807 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 29.

The square root of 76630025 is about 8753.8577210279. The cubic root of 76630025 is about 424.7496102968.

The spelling of 76630025 in words is "seventy-six million, six hundred thirty thousand, twenty-five".

Divisors: 1 5 25 41 205 1025 74761 373805 1869025 3065201 15326005 76630025