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28299260160 = 2832531109727
BaseRepresentation
bin11010010110110001…
…000111000100000000
32201001020001100220200
4122112301013010000
5430424102311120
621000035205200
72021165512443
oct322661070400
981036040820
1028299260160
1111002216016
125599446800
13288cc19b72
14152660d65a
15b0967ae90
hex696c47100

28299260160 has 432 divisors, whose sum is σ = 102138516480. Its totient is φ = 7226081280.

The previous prime is 28299260149. The next prime is 28299260167. The reversal of 28299260160 is 6106299282.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (28299260167) 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 47 ways as a sum of consecutive naturals, for example, 38925717 + ... + 38926443.

Almost surely, 228299260160 is an apocalyptic number.

28299260160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28299260160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51069258240).

28299260160 is an abundant number, since it is smaller than the sum of its proper divisors (73839256320).

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

28299260160 is a wasteful number, since it uses less digits than its factorization.

28299260160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 894 (or 877 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The spelling of 28299260160 in words is "twenty-eight billion, two hundred ninety-nine million, two hundred sixty thousand, one hundred sixty".