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28672056000 = 2635537343
BaseRepresentation
bin11010101100111111…
…001101101011000000
32202000012112100200000
4122230333031223000
5432210021243000
621101033400000
72033343312000
oct325477155300
982005470600
1028672056000
11111836a0055
125682269000
13291c224c13
14155dd32000
15b2c269000
hex6acfcdac0

28672056000 has 1344 divisors, whose sum is σ = 126923596800. Its totient is φ = 6401203200.

The previous prime is 28672055987. The next prime is 28672056011. The reversal of 28672056000 is 65027682.

28672056000 is a `hidden beast` number, since 28 + 6 + 7 + 20 + 5 + 600 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1344).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 666791979 + ... + 666792021.

It is an arithmetic number, because the mean of its divisors is an integer number (94437200).

Almost surely, 228672056000 is an apocalyptic number.

28672056000 is a gapful number since it is divisible by the number (20) 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 28672056000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63461798400).

28672056000 is an abundant number, since it is smaller than the sum of its proper divisors (98251540800).

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

28672056000 is an frugal number, since it uses more digits than its factorization.

28672056000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106 (or 60 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The spelling of 28672056000 in words is "twenty-eight billion, six hundred seventy-two million, fifty-six thousand".