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28900367 = 374119051
BaseRepresentation
bin110111000111…
…1110000001111
32000101021211222
41232033300033
524344302432
62511233555
7500435426
oct156176017
960337758
1028900367
111534a301
1298188bb
135cab612
143ba42bd
15280d112
hex1b8fc0f

28900367 has 8 divisors (see below), whose sum is σ = 30406992. Its totient is φ = 27432000.

The previous prime is 28900363. The next prime is 28900373. The reversal of 28900367 is 76300982.

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

It is a cyclic number.

It is not a de Polignac number, because 28900367 - 22 = 28900363 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28900363) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8009 + ... + 11042.

It is an arithmetic number, because the mean of its divisors is an integer number (3800874).

Almost surely, 228900367 is an apocalyptic number.

28900367 is a deficient number, since it is larger than the sum of its proper divisors (1506625).

28900367 is a wasteful number, since it uses less digits than its factorization.

28900367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19129.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 28900367 is about 5375.9061561750. The cubic root of 28900367 is about 306.8794350220.

The spelling of 28900367 in words is "twenty-eight million, nine hundred thousand, three hundred sixty-seven".

Divisors: 1 37 41 1517 19051 704887 781091 28900367