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28896030 = 23253110357
BaseRepresentation
bin110111000111…
…0101100011110
32000101001220100
41232032230132
524344133110
62511201530
7500416662
oct156165436
960331810
1028896030
1115347019
1298162a6
135ca9657
143ba28a2
15280bbc0
hex1b8eb1e

28896030 has 48 divisors (see below), whose sum is σ = 77560704. Its totient is φ = 7456320.

The previous prime is 28896029. The next prime is 28896037. The reversal of 28896030 is 3069882.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28896037) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2389 + ... + 7968.

It is an arithmetic number, because the mean of its divisors is an integer number (1615848).

Almost surely, 228896030 is an apocalyptic number.

28896030 is an abundant number, since it is smaller than the sum of its proper divisors (48664674).

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

28896030 is a wasteful number, since it uses less digits than its factorization.

28896030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10401 (or 10398 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 28896030 is about 5375.5027671837. The cubic root of 28896030 is about 306.8640833982.

The spelling of 28896030 in words is "twenty-eight million, eight hundred ninety-six thousand, thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 31 45 62 90 93 155 186 279 310 465 558 930 1395 2790 10357 20714 31071 51785 62142 93213 103570 155355 186426 310710 321067 466065 642134 932130 963201 1605335 1926402 2889603 3210670 4816005 5779206 9632010 14448015 28896030