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28744286300 = 2252287442863
BaseRepresentation
bin11010110001010010…
…110000000001011100
32202012020110001000022
4122301102300001130
5432332014130200
621112133451312
72035211254652
oct326122600134
982166401008
1028744286300
1111210444814
1256a24a0b38
132931194942
141569774dd2
15b33785885
hex6b14b005c

28744286300 has 18 divisors (see below), whose sum is σ = 62375101488. Its totient is φ = 11497714480.

The previous prime is 28744286299. The next prime is 28744286309. The reversal of 28744286300 is 368244782.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28744286309) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 143721332 + ... + 143721531.

It is an arithmetic number, because the mean of its divisors is an integer number (3465283416).

Almost surely, 228744286300 is an apocalyptic number.

28744286300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28744286300 is an abundant number, since it is smaller than the sum of its proper divisors (33630815188).

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

28744286300 is a wasteful number, since it uses less digits than its factorization.

28744286300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287442877 (or 287442870 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 44.

The spelling of 28744286300 in words is "twenty-eight billion, seven hundred forty-four million, two hundred eighty-six thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 287442863 574885726 1149771452 1437214315 2874428630 5748857260 7186071575 14372143150 28744286300