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5128487300 = 225251284873
BaseRepresentation
bin1001100011010111…
…01000000110000100
3111020102011011000002
410301223220012010
541000343043200
62204521140432
7241042265006
oct46153500604
914212134002
105128487300
1121a1996462
12bb162a718
13639667991
1436918a376
15200386bd5
hex131ae8184

5128487300 has 18 divisors (see below), whose sum is σ = 11128817658. Its totient is φ = 2051394880.

The previous prime is 5128487251. The next prime is 5128487303. The reversal of 5128487300 is 37848215.

It can be written as a sum of positive squares in 3 ways, for example, as 1551729664 + 3576757636 = 39392^2 + 59806^2 .

It is a super-2 number, since 2×51284873002 = 52602763972522580000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5128487303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25642337 + ... + 25642536.

Almost surely, 25128487300 is an apocalyptic number.

5128487300 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

5128487300 is an abundant number, since it is smaller than the sum of its proper divisors (6000330358).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5128487300 is a wasteful number, since it uses less digits than its factorization.

5128487300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51284887 (or 51284880 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 5128487300 is about 71613.4575341814. The cubic root of 5128487300 is about 1724.4995873964.

The spelling of 5128487300 in words is "five billion, one hundred twenty-eight million, four hundred eighty-seven thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 51284873 102569746 205139492 256424365 512848730 1025697460 1282121825 2564243650 5128487300