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28767004032 = 2731331211881
BaseRepresentation
bin11010110010101001…
…011010010110000000
32202020211012012212210
4122302221122112000
5432403323112112
621114304422120
72035605333264
oct326251322600
982224165783
1028767004032
11112222509a8
1256aa017940
132935aba0a0
14156c7aa0a4
15b35771b3c
hex6b2a5a580

28767004032 has 256 divisors, whose sum is σ = 85444208640. Its totient is φ = 8515584000.

The previous prime is 28767004031. The next prime is 28767004043. The reversal of 28767004032 is 23040076782.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28767004031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32652232 + ... + 32653112.

It is an arithmetic number, because the mean of its divisors is an integer number (333766440).

Almost surely, 228767004032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28767004032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42722104320).

28767004032 is an abundant number, since it is smaller than the sum of its proper divisors (56677204608).

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

28767004032 is a wasteful number, since it uses less digits than its factorization.

28767004032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1153 (or 1141 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 39.

The spelling of 28767004032 in words is "twenty-eight billion, seven hundred sixty-seven million, four thousand, thirty-two".