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28977262 = 2142910139
BaseRepresentation
bin110111010001…
…0100001101110
32000112012022221
41232202201232
524404233022
62513025554
7501205546
oct156424156
960465287
1028977262
11153a2056
1298552ba
136007612
143bc4326
152825cc7
hex1ba286e

28977262 has 8 divisors (see below), whose sum is σ = 43500600. Its totient is φ = 14477064.

The previous prime is 28977259. The next prime is 28977269. The reversal of 28977262 is 26277982.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28977269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2212 + ... + 7927.

It is an arithmetic number, because the mean of its divisors is an integer number (5437575).

Almost surely, 228977262 is an apocalyptic number.

28977262 is a deficient number, since it is larger than the sum of its proper divisors (14523338).

28977262 is a wasteful number, since it uses less digits than its factorization.

28977262 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11570.

The product of its digits is 169344, while the sum is 43.

The square root of 28977262 is about 5383.0532228467. The cubic root of 28977262 is about 307.1513646308.

The spelling of 28977262 in words is "twenty-eight million, nine hundred seventy-seven thousand, two hundred sixty-two".

Divisors: 1 2 1429 2858 10139 20278 14488631 28977262