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7801064225 = 52565155219
BaseRepresentation
bin1110100001111101…
…01100101100100001
3202010200002010022122
413100332230230201
5111434033023400
63330031514025
7364213644323
oct72076545441
922120063278
107801064225
113343552019
121618688915
1397426c346
145400c1613
15309d01685
hex1d0facb21

7801064225 has 12 divisors (see below), whose sum is σ = 9675206640. Its totient is φ = 6239634000.

The previous prime is 7801064221. The next prime is 7801064233. The reversal of 7801064225 is 5224601087.

It is not a de Polignac number, because 7801064225 - 22 = 7801064221 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7801064221) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 113666 + ... + 168884.

It is an arithmetic number, because the mean of its divisors is an integer number (806267220).

Almost surely, 27801064225 is an apocalyptic number.

It is an amenable number.

7801064225 is a deficient number, since it is larger than the sum of its proper divisors (1874142415).

7801064225 is a wasteful number, since it uses less digits than its factorization.

7801064225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60880 (or 60875 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 7801064225 is about 88323.6334454148. The cubic root of 7801064225 is about 1983.2826735799.

The spelling of 7801064225 in words is "seven billion, eight hundred one million, sixty-four thousand, two hundred twenty-five".

Divisors: 1 5 25 5651 28255 55219 141275 276095 1380475 312042569 1560212845 7801064225