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28083104 = 257125371
BaseRepresentation
bin110101100100…
…0001110100000
31221211202202222
41223020032200
524142124404
62441530212
7460462640
oct153101640
957752688
1028083104
1114941285
1294a3968
135a8362a
143a30520
1526eadbe
hex1ac83a0

28083104 has 24 divisors (see below), whose sum is σ = 63187488. Its totient is φ = 12035520.

The previous prime is 28083103. The next prime is 28083109. The reversal of 28083104 is 40138082.

It is not an unprimeable number, because it can be changed into a prime (28083101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62462 + ... + 62909.

It is an arithmetic number, because the mean of its divisors is an integer number (2632812).

Almost surely, 228083104 is an apocalyptic number.

It is an amenable number.

28083104 is an abundant number, since it is smaller than the sum of its proper divisors (35104384).

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

28083104 is a wasteful number, since it uses less digits than its factorization.

28083104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125388 (or 125380 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 28083104 is about 5299.3493940294. The cubic root of 28083104 is about 303.9590203302.

The spelling of 28083104 in words is "twenty-eight million, eighty-three thousand, one hundred four".

Divisors: 1 2 4 7 8 14 16 28 32 56 112 224 125371 250742 501484 877597 1002968 1755194 2005936 3510388 4011872 7020776 14041552 28083104