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28448008 = 233556001
BaseRepresentation
bin110110010000…
…1010100001000
31222112022022221
41230201110020
524240314013
62453423424
7463542541
oct154412410
958468287
1028448008
1115070456
12963ab74
135b80754
143ac74c8
15276e08d
hex1b21508

28448008 has 8 divisors (see below), whose sum is σ = 53340030. Its totient is φ = 14224000.

The previous prime is 28447981. The next prime is 28448011. The reversal of 28448008 is 80084482.

It can be written as a sum of positive squares in only one way, i.e., 24029604 + 4418404 = 4902^2 + 2102^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1777993 + ... + 1778008.

Almost surely, 228448008 is an apocalyptic number.

It is an amenable number.

28448008 is a deficient number, since it is larger than the sum of its proper divisors (24892022).

28448008 is a wasteful number, since it uses less digits than its factorization.

28448008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3556007 (or 3556003 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 34.

The square root of 28448008 is about 5333.6674062037. The cubic root of 28448008 is about 305.2698784802.

The spelling of 28448008 in words is "twenty-eight million, four hundred forty-eight thousand, eight".

Divisors: 1 2 4 8 3556001 7112002 14224004 28448008