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28469248 = 21113901
BaseRepresentation
bin110110010011…
…0100000000000
31222120101110121
41230212200000
524242003443
62454110024
7463661503
oct154464000
958511417
1028469248
1115085405
12964b314
135b8a312
143ad113a
1527754ed
hex1b26800

28469248 has 24 divisors (see below), whose sum is σ = 56928690. Its totient is φ = 14233600.

The previous prime is 28469227. The next prime is 28469257. The reversal of 28469248 is 84296482.

It can be written as a sum of positive squares in only one way, i.e., 20358144 + 8111104 = 4512^2 + 2848^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4903 + ... + 8998.

Almost surely, 228469248 is an apocalyptic number.

It is an amenable number.

28469248 is a deficient number, since it is larger than the sum of its proper divisors (28459442).

28469248 is an equidigital number, since it uses as much as digits as its factorization.

28469248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13923 (or 13903 counting only the distinct ones).

The product of its digits is 221184, while the sum is 43.

The square root of 28469248 is about 5335.6581599649. The cubic root of 28469248 is about 305.3458336426.

The spelling of 28469248 in words is "twenty-eight million, four hundred sixty-nine thousand, two hundred forty-eight".

Divisors: 1 2 4 8 16 32 64 128 256 512 1024 2048 13901 27802 55604 111208 222416 444832 889664 1779328 3558656 7117312 14234624 28469248