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28862033 = 235921269
BaseRepresentation
bin110111000011…
…0011001010001
32000022100021012
41232012121101
524342041113
62510340305
7500215604
oct156063121
960270235
1028862033
1115323522
1297ba695
135c97035
143b9433b
152801aa8
hex1b86651

28862033 has 8 divisors (see below), whose sum is σ = 30628800. Its totient is φ = 27137968.

The previous prime is 28862027. The next prime is 28862087. The reversal of 28862033 is 33026882.

It is a happy number.

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 28862033 - 212 = 28857937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28862003) 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, 9278 + ... + 11991.

It is an arithmetic number, because the mean of its divisors is an integer number (3828600).

Almost surely, 228862033 is an apocalyptic number.

28862033 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

28862033 is a deficient number, since it is larger than the sum of its proper divisors (1766767).

28862033 is a wasteful number, since it uses less digits than its factorization.

28862033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21351.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 28862033 is about 5372.3396206867. The cubic root of 28862033 is about 306.7436914011.

The spelling of 28862033 in words is "twenty-eight million, eight hundred sixty-two thousand, thirty-three".

Divisors: 1 23 59 1357 21269 489187 1254871 28862033