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28630024 = 2310613373
BaseRepresentation
bin110110100110…
…1110000001000
31222212120000021
41231031300020
524312130044
62501350224
7465231313
oct155156010
958776007
1028630024
1115185185
129708374
135c15557
143b3397a
1527a7e84
hex1b4dc08

28630024 has 16 divisors (see below), whose sum is σ = 53747820. Its totient is φ = 14297280.

The previous prime is 28629977. The next prime is 28630051. The reversal of 28630024 is 42003682.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 23833924 + 4796100 = 4882^2 + 2190^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6802 + ... + 10174.

Almost surely, 228630024 is an apocalyptic number.

It is an amenable number.

28630024 is a deficient number, since it is larger than the sum of its proper divisors (25117796).

28630024 is a wasteful number, since it uses less digits than its factorization.

28630024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4440 (or 4436 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 28630024 is about 5350.7031313651. The cubic root of 28630024 is about 305.9195539451.

The spelling of 28630024 in words is "twenty-eight million, six hundred thirty thousand, twenty-four".

Divisors: 1 2 4 8 1061 2122 3373 4244 6746 8488 13492 26984 3578753 7157506 14315012 28630024