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28362840912 = 243272311271021
BaseRepresentation
bin11010011010100011…
…101001101101010000
32201012122200121022100
4122122203221231100
5431041341402122
621010230040400
72022600112200
oct323243515520
981178617270
1028362840912
11110350a219a
1255b67a9100
1328a014b903
141530c40400
15b10039aac
hex69a8e9b50

28362840912 has 360 divisors, whose sum is σ = 96159178752. Its totient is φ = 7772889600.

The previous prime is 28362840889. The next prime is 28362840949. The reversal of 28362840912 is 21904826382.

28362840912 is a `hidden beast` number, since 2 + 8 + 3 + 628 + 4 + 0 + 9 + 12 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 27778962 + ... + 27779982.

Almost surely, 228362840912 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 28362840912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48079589376).

28362840912 is an abundant number, since it is smaller than the sum of its proper divisors (67796337840).

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

28362840912 is a wasteful number, since it uses less digits than its factorization.

28362840912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1207 (or 1191 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The spelling of 28362840912 in words is "twenty-eight billion, three hundred sixty-two million, eight hundred forty thousand, nine hundred twelve".