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16228108512 = 2533721134847
BaseRepresentation
bin11110001110100010…
…10100100011100000
31112212222001022212000
433013101110203200
5231213343433022
611242144404000
71113101434500
oct170721244340
945788038760
1016228108512
116978387130
12318a916600
1316b8102595
14add38da00
1564ea536ac
hex3c74548e0

16228108512 has 288 divisors, whose sum is σ = 60066800640. Its totient is φ = 4214972160.

The previous prime is 16228108511. The next prime is 16228108517. The reversal of 16228108512 is 21580182261.

16228108512 is a `hidden beast` number, since 1 + 62 + 2 + 81 + 0 + 8 + 512 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

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 (16228108511) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 448273 + ... + 483119.

It is an arithmetic number, because the mean of its divisors is an integer number (208565280).

Almost surely, 216228108512 is an apocalyptic number.

16228108512 is a gapful number since it is divisible by the number (12) 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 16228108512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30033400320).

16228108512 is an abundant number, since it is smaller than the sum of its proper divisors (43838692128).

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

16228108512 is a wasteful number, since it uses less digits than its factorization.

16228108512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34891 (or 34870 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 36.

The spelling of 16228108512 in words is "sixteen billion, two hundred twenty-eight million, one hundred eight thousand, five hundred twelve".