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28633368 = 2331193057
BaseRepresentation
bin110110100111…
…0100100011000
31222212201121010
41231032210120
524312231433
62501413520
7465244131
oct155164430
958781533
1028633368
1115187745
12970a2a0
135c16c2a
143b34c88
1527a8e63
hex1b4e918

28633368 has 16 divisors (see below), whose sum is σ = 71583480. Its totient is φ = 9544448.

The previous prime is 28633351. The next prime is 28633369. The reversal of 28633368 is 86333682.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28633369) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 596505 + ... + 596552.

Almost surely, 228633368 is an apocalyptic number.

It is an amenable number.

28633368 is an abundant number, since it is smaller than the sum of its proper divisors (42950112).

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

28633368 is a wasteful number, since it uses less digits than its factorization.

28633368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1193066 (or 1193062 counting only the distinct ones).

The product of its digits is 124416, while the sum is 39.

The square root of 28633368 is about 5351.0156045371. The cubic root of 28633368 is about 305.9314639964.

The spelling of 28633368 in words is "twenty-eight million, six hundred thirty-three thousand, three hundred sixty-eight".

Divisors: 1 2 3 4 6 8 12 24 1193057 2386114 3579171 4772228 7158342 9544456 14316684 28633368