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28200934 = 229486223
BaseRepresentation
bin110101110010…
…0111111100110
31222001202102001
41223210333212
524204412214
62444235514
7461463316
oct153447746
958052361
1028200934
1114a11863
12953bb9a
135ac5158
143a61446
152720c74
hex1ae4fe6

28200934 has 8 divisors (see below), whose sum is σ = 43760160. Its totient is φ = 13614216.

The previous prime is 28200923. The next prime is 28200941. The reversal of 28200934 is 43900282.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 243054 + ... + 243169.

It is an arithmetic number, because the mean of its divisors is an integer number (5470020).

Almost surely, 228200934 is an apocalyptic number.

28200934 is a deficient number, since it is larger than the sum of its proper divisors (15559226).

28200934 is a wasteful number, since it uses less digits than its factorization.

28200934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486254.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 28200934 is about 5310.4551594002. The cubic root of 28200934 is about 304.3835403158.

The spelling of 28200934 in words is "twenty-eight million, two hundred thousand, nine hundred thirty-four".

Divisors: 1 2 29 58 486223 972446 14100467 28200934