Search a number
-
+
28824376 = 2372917749
BaseRepresentation
bin110110111110…
…1001100111000
32000020102121111
41231331030320
524334340001
62505450104
7500001040
oct155751470
960212544
1028824376
11152a81a9
1297a0934
135c82b59
143b84720
1527e5851
hex1b7d338

28824376 has 32 divisors (see below), whose sum is σ = 63900000. Its totient is φ = 11926656.

The previous prime is 28824371. The next prime is 28824403. The reversal of 28824376 is 67342882.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28824371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7251 + ... + 10498.

It is an arithmetic number, because the mean of its divisors is an integer number (1996875).

Almost surely, 228824376 is an apocalyptic number.

It is an amenable number.

28824376 is an abundant number, since it is smaller than the sum of its proper divisors (35075624).

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

28824376 is a wasteful number, since it uses less digits than its factorization.

28824376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17791 (or 17787 counting only the distinct ones).

The product of its digits is 129024, while the sum is 40.

The square root of 28824376 is about 5368.8337653535. The cubic root of 28824376 is about 306.6102280090.

The spelling of 28824376 in words is "twenty-eight million, eight hundred twenty-four thousand, three hundred seventy-six".

Divisors: 1 2 4 7 8 14 28 29 56 58 116 203 232 406 812 1624 17749 35498 70996 124243 141992 248486 496972 514721 993944 1029442 2058884 3603047 4117768 7206094 14412188 28824376