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12872044800 = 283352163457
BaseRepresentation
bin10111111110011101…
…11101000100000000
31020020002000121221000
423333032331010000
5202330220413200
65525140332000
7633660401256
oct137716750400
936202017830
1012872044800
115505a2a85a
1225b29a4000
1312a1a20b74
148a177c5d6
155050c9300
hex2ff3bd100

12872044800 has 432 divisors, whose sum is σ = 47593967680. Its totient is φ = 3404021760.

The previous prime is 12872044799. The next prime is 12872044807. The reversal of 12872044800 is 844027821.

It is a tau number, because it is divible by the number of its divisors (432).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (12872044807) 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, 28166172 + ... + 28166628.

Almost surely, 212872044800 is an apocalyptic number.

12872044800 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 12872044800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23796983840).

12872044800 is an abundant number, since it is smaller than the sum of its proper divisors (34721922880).

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

12872044800 is a wasteful number, since it uses less digits than its factorization.

12872044800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655 (or 630 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 36.

The spelling of 12872044800 in words is "twelve billion, eight hundred seventy-two million, forty-four thousand, eight hundred".