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5128246080 = 26345533733
BaseRepresentation
bin1001100011010101…
…01101001101000000
3111020101200220010000
410301222231031000
541000312333310
62204512040000
7241040241516
oct46152551500
914211626100
105128246080
1121a1841201
12bb1533000
136395b1c49
143691264b6
1520033a4c0
hex131aad340

5128246080 has 280 divisors, whose sum is σ = 18591242472. Its totient is φ = 1341370368.

The previous prime is 5128246073. The next prime is 5128246087. The reversal of 5128246080 is 806428215.

5128246080 is a `hidden beast` number, since 5 + 1 + 28 + 24 + 608 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (5128246073) and next prime (5128246087).

It can be written as a sum of positive squares in 4 ways, for example, as 1012766976 + 4115479104 = 31824^2 + 64152^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5128246087) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1371894 + ... + 1375626.

Almost surely, 25128246080 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5128246080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9295621236).

5128246080 is an abundant number, since it is smaller than the sum of its proper divisors (13462996392).

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

5128246080 is a wasteful number, since it uses less digits than its factorization.

5128246080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3815 (or 3796 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 5128246080 is about 71611.7733337194. The cubic root of 5128246080 is about 1724.4725495138.

The spelling of 5128246080 in words is "five billion, one hundred twenty-eight million, two hundred forty-six thousand, eighty".