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12885739200 = 263452195233
BaseRepresentation
bin11000000000000110…
…01100011011000000
31020021000210101010000
430000003030123000
5202342222123300
65530350040000
7634214655525
oct140003143300
936230711100
1012885739200
115512733644
1225b74a9000
1312a4807169
148a350514c
155063d1c00
hex3000cc6c0

12885739200 has 420 divisors, whose sum is σ = 49867144360. Its totient is φ = 3254722560.

The previous prime is 12885739193. The next prime is 12885739231. The reversal of 12885739200 is 293758821.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 2459784 + ... + 2465016.

Almost surely, 212885739200 is an apocalyptic number.

12885739200 is a gapful number since it is divisible by the number (10) 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 12885739200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24933572180).

12885739200 is an abundant number, since it is smaller than the sum of its proper divisors (36981405160).

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

12885739200 is a wasteful number, since it uses less digits than its factorization.

12885739200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5286 (or 5262 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The spelling of 12885739200 in words is "twelve billion, eight hundred eighty-five million, seven hundred thirty-nine thousand, two hundred".