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5245901280 = 253351816709
BaseRepresentation
bin1001110001010111…
…00001100111100000
3111112121002101201000
410320223201213200
541220422320110
62224313512000
7243666265554
oct47053414740
914477071630
105245901280
1122521a1304
121024a12600
13657a977c9
1437a9d1864
1520a82b1c0
hex138ae19e0

5245901280 has 192 divisors, whose sum is σ = 18464846400. Its totient is φ = 1390970880.

The previous prime is 5245901267. The next prime is 5245901281. The reversal of 5245901280 is 821095425.

5245901280 is a `hidden beast` number, since 52 + 4 + 590 + 12 + 8 + 0 = 666.

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 (5245901281) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 778566 + ... + 785274.

It is an arithmetic number, because the mean of its divisors is an integer number (96171075).

Almost surely, 25245901280 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 5245901280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9232423200).

5245901280 is an abundant number, since it is smaller than the sum of its proper divisors (13218945120).

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

5245901280 is a wasteful number, since it uses less digits than its factorization.

5245901280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6914 (or 6900 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 5245901280 is about 72428.5943533353. The cubic root of 5245901280 is about 1737.5609107229.

The spelling of 5245901280 in words is "five billion, two hundred forty-five million, nine hundred one thousand, two hundred eighty".