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28817352 = 23323112911
BaseRepresentation
bin110110111101…
…1011111001000
32000020001222100
41231323133020
524334123402
62505353400
7466641414
oct155733710
960201870
1028817352
11152a29a3
129798860
135c7c8b5
143b81d44
1527e371c
hex1b7b7c8

28817352 has 48 divisors (see below), whose sum is σ = 80570880. Its totient is φ = 9295200.

The previous prime is 28817333. The next prime is 28817359. The reversal of 28817352 is 25371882.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28817359) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4224 + ... + 8687.

It is an arithmetic number, because the mean of its divisors is an integer number (1678560).

Almost surely, 228817352 is an apocalyptic number.

It is an amenable number.

28817352 is an abundant number, since it is smaller than the sum of its proper divisors (51753528).

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

28817352 is a wasteful number, since it uses less digits than its factorization.

28817352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12954 (or 12947 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 28817352 is about 5368.1795797086. The cubic root of 28817352 is about 306.5853207893.

The spelling of 28817352 in words is "twenty-eight million, eight hundred seventeen thousand, three hundred fifty-two".

Divisors: 1 2 3 4 6 8 9 12 18 24 31 36 62 72 93 124 186 248 279 372 558 744 1116 2232 12911 25822 38733 51644 77466 103288 116199 154932 232398 309864 400241 464796 800482 929592 1200723 1600964 2401446 3201928 3602169 4802892 7204338 9605784 14408676 28817352