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28942300 = 2252289423
BaseRepresentation
bin110111001100…
…1111111011100
32000110102101001
41232121333130
524402123200
62512200044
7501001612
oct156317734
960412331
1028942300
1115378862
129839024
135cc472a
143bb56b2
15281a76a
hex1b99fdc

28942300 has 18 divisors (see below), whose sum is σ = 62805008. Its totient is φ = 11576880.

The previous prime is 28942283. The next prime is 28942327. The reversal of 28942300 is 324982.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 144612 + ... + 144811.

Almost surely, 228942300 is an apocalyptic number.

28942300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28942300 is an abundant number, since it is smaller than the sum of its proper divisors (33862708).

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

28942300 is a wasteful number, since it uses less digits than its factorization.

28942300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289437 (or 289430 counting only the distinct ones).

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

The square root of 28942300 is about 5379.8048291736. The cubic root of 28942300 is about 307.0277855784.

The spelling of 28942300 in words is "twenty-eight million, nine hundred forty-two thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 289423 578846 1157692 1447115 2894230 5788460 7235575 14471150 28942300