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28792828 = 2219457829
BaseRepresentation
bin110110111010…
…1011111111100
32000011211100001
41231311133330
524332332303
62505044044
7466510051
oct155653774
960154301
1028792828
1115286529
129786624
135c7169c
143b77028
1527db31d
hex1b757fc

28792828 has 24 divisors (see below), whose sum is σ = 53219600. Its totient is φ = 13592448.

The previous prime is 28792823. The next prime is 28792837. The reversal of 28792828 is 82829782.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28792823) 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, 34318 + ... + 35146.

Almost surely, 228792828 is an apocalyptic number.

It is an amenable number.

28792828 is a deficient number, since it is larger than the sum of its proper divisors (24426772).

28792828 is a wasteful number, since it uses less digits than its factorization.

28792828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1309 (or 1307 counting only the distinct ones).

The product of its digits is 258048, while the sum is 46.

The square root of 28792828 is about 5365.8948927462. The cubic root of 28792828 is about 306.4983265337.

The spelling of 28792828 in words is "twenty-eight million, seven hundred ninety-two thousand, eight hundred twenty-eight".

Divisors: 1 2 4 19 38 76 457 829 914 1658 1828 3316 8683 15751 17366 31502 34732 63004 378853 757706 1515412 7198207 14396414 28792828