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28915034 = 271203627
BaseRepresentation
bin110111001001…
…1010101011010
32000102000222012
41232103111122
524400240114
62511425522
7500526251
oct156232532
960360865
1028915034
111535a325
1298252a2
135cb51b5
143ba9798
15281263e
hex1b9355a

28915034 has 8 divisors (see below), whose sum is σ = 43983648. Its totient is φ = 14253820.

The previous prime is 28915031. The next prime is 28915039. The reversal of 28915034 is 43051982.

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

It is not an unprimeable number, because it can be changed into a prime (28915031) 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, 101672 + ... + 101955.

It is an arithmetic number, because the mean of its divisors is an integer number (5497956).

Almost surely, 228915034 is an apocalyptic number.

28915034 is a deficient number, since it is larger than the sum of its proper divisors (15068614).

28915034 is a wasteful number, since it uses less digits than its factorization.

28915034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203700.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 28915034 is about 5377.2701252587. The cubic root of 28915034 is about 306.9313402391.

The spelling of 28915034 in words is "twenty-eight million, nine hundred fifteen thousand, thirty-four".

Divisors: 1 2 71 142 203627 407254 14457517 28915034