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8028445525 = 52449715229
BaseRepresentation
bin1110111101000100…
…00101101101010101
3202201111221021211021
413132202011231111
5112420240224100
63404353241141
7402644442502
oct73642055525
922644837737
108028445525
11344a936a51
1216808631b1
139ac3c26a9
145623904a9
1531ec68a1a
hex1de885b55

8028445525 has 12 divisors (see below), whose sum is σ = 9977458500. Its totient is φ = 6408442880.

The previous prime is 8028445501. The next prime is 8028445549. The reversal of 8028445525 is 5255448208.

It is an interprime number because it is at equal distance from previous prime (8028445501) and next prime (8028445549).

It can be written as a sum of positive squares in 6 ways, for example, as 390734289 + 7637711236 = 19767^2 + 87394^2 .

It is not a de Polignac number, because 8028445525 - 25 = 8028445493 is a prime.

It is a congruent number.

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, 346390 + ... + 368839.

It is an arithmetic number, because the mean of its divisors is an integer number (831454875).

Almost surely, 28028445525 is an apocalyptic number.

It is an amenable number.

8028445525 is a deficient number, since it is larger than the sum of its proper divisors (1949012975).

8028445525 is a wasteful number, since it uses less digits than its factorization.

8028445525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715688 (or 715683 counting only the distinct ones).

The product of its (nonzero) digits is 512000, while the sum is 43.

The square root of 8028445525 is about 89601.5933173066. The cubic root of 8028445525 is about 2002.3676564122.

The spelling of 8028445525 in words is "eight billion, twenty-eight million, four hundred forty-five thousand, five hundred twenty-five".

Divisors: 1 5 25 449 2245 11225 715229 3576145 17880725 321137821 1605689105 8028445525