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28835976 = 23313293187
BaseRepresentation
bin110111000000…
…0000010001000
32000021000112010
41232000002020
524340222401
62510015520
7500046621
oct156000210
960230463
1028835976
1115305994
1297a75a0
135c88210
143b88a48
1527e8ed6
hex1b80088

28835976 has 64 divisors (see below), whose sum is σ = 80337600. Its totient is φ = 8563968.

The previous prime is 28835971. The next prime is 28836007. The reversal of 28835976 is 67953882.

It is not an unprimeable number, because it can be changed into a prime (28835971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7455 + ... + 10641.

It is an arithmetic number, because the mean of its divisors is an integer number (1255275).

Almost surely, 228835976 is an apocalyptic number.

28835976 is a gapful number since it is divisible by the number (26) 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 28835976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40168800).

28835976 is an abundant number, since it is smaller than the sum of its proper divisors (51501624).

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

28835976 is a wasteful number, since it uses less digits than its factorization.

28835976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3238 (or 3234 counting only the distinct ones).

The product of its digits is 725760, while the sum is 48.

The square root of 28835976 is about 5369.9139657913. The cubic root of 28835976 is about 306.6513529425.

The spelling of 28835976 in words is "twenty-eight million, eight hundred thirty-five thousand, nine hundred seventy-six".

Divisors: 1 2 3 4 6 8 12 13 24 26 29 39 52 58 78 87 104 116 156 174 232 312 348 377 696 754 1131 1508 2262 3016 3187 4524 6374 9048 9561 12748 19122 25496 38244 41431 76488 82862 92423 124293 165724 184846 248586 277269 331448 369692 497172 554538 739384 994344 1109076 1201499 2218152 2402998 3604497 4805996 7208994 9611992 14417988 28835976