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80722625 = 533311951
BaseRepresentation
bin1001100111110…
…11101011000001
312121220010121212
410303323223001
5131131111000
612002055505
72000062634
oct463735301
9177803555
1080722625
1141625115
122304a595
1313954289
14aa13c1b
157147c35
hex4cfbac1

80722625 has 16 divisors (see below), whose sum is σ = 101097984. Its totient is φ = 64350000.

The previous prime is 80722601. The next prime is 80722627. The reversal of 80722625 is 52622708.

It is not a de Polignac number, because 80722625 - 212 = 80718529 is a prime.

It is a super-2 number, since 2×807226252 = 13032284373781250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80722591 and 80722600.

It is not an unprimeable number, because it can be changed into a prime (80722627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40400 + ... + 42350.

It is an arithmetic number, because the mean of its divisors is an integer number (6318624).

Almost surely, 280722625 is an apocalyptic number.

It is an amenable number.

80722625 is a deficient number, since it is larger than the sum of its proper divisors (20375359).

80722625 is a wasteful number, since it uses less digits than its factorization.

80722625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2297 (or 2287 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 80722625 is about 8984.5770629451. The cubic root of 80722625 is about 432.1804248208.

It can be divided in two parts, 807 and 22625, that added together give a palindrome (23432).

The spelling of 80722625 in words is "eighty million, seven hundred twenty-two thousand, six hundred twenty-five".

Divisors: 1 5 25 125 331 1655 1951 8275 9755 41375 48775 243875 645781 3228905 16144525 80722625