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47620025 = 526532917
BaseRepresentation
bin1011010110100…
…1111110111001
310022121100101122
42311221332321
544142320100
64420355025
71115522615
oct265517671
9108540348
1047620025
11249756a2
1213b45a75
139b3403b
146478345
1542a9985
hex2d69fb9

47620025 has 12 divisors (see below), whose sum is σ = 59159532. Its totient is φ = 38024640.

The previous prime is 47620019. The next prime is 47620039. The reversal of 47620025 is 52002674.

It can be written as a sum of positive squares in 6 ways, for example, as 395641 + 47224384 = 629^2 + 6872^2 .

It is not a de Polignac number, because 47620025 - 214 = 47603641 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 47619976 and 47620003.

It is a congruent 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 11 ways as a sum of consecutive naturals, for example, 14867 + ... + 17783.

It is an arithmetic number, because the mean of its divisors is an integer number (4929961).

Almost surely, 247620025 is an apocalyptic number.

It is an amenable number.

47620025 is a deficient number, since it is larger than the sum of its proper divisors (11539507).

47620025 is a wasteful number, since it uses less digits than its factorization.

47620025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3580 (or 3575 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 47620025 is about 6900.7264110382. The cubic root of 47620025 is about 362.4626041487.

Adding to 47620025 its reverse (52002674), we get a palindrome (99622699).

The spelling of 47620025 in words is "forty-seven million, six hundred twenty thousand, twenty-five".

Divisors: 1 5 25 653 2917 3265 14585 16325 72925 1904801 9524005 47620025