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28962927 = 35717027
BaseRepresentation
bin110111001111…
…1000001101111
32000111110200000
41232133001233
524403303202
62512435343
7501116010
oct156370157
960443600
1028962927
1115392304
129848b53
136000c36
143bbd007
15282191c
hex1b9f06f

28962927 has 24 divisors (see below), whose sum is σ = 49585536. Its totient is φ = 16549272.

The previous prime is 28962919. The next prime is 28962929. The reversal of 28962927 is 72926982.

It is not a de Polignac number, because 28962927 - 23 = 28962919 is a prime.

It is a super-2 number, since 2×289629272 = 1677702280814658, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28962929) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6813 + ... + 10214.

It is an arithmetic number, because the mean of its divisors is an integer number (2066064).

Almost surely, 228962927 is an apocalyptic number.

28962927 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

28962927 is a deficient number, since it is larger than the sum of its proper divisors (20622609).

28962927 is an equidigital number, since it uses as much as digits as its factorization.

28962927 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17049 (or 17037 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 28962927 is about 5381.7215647040. The cubic root of 28962927 is about 307.1007071985.

The spelling of 28962927 in words is "twenty-eight million, nine hundred sixty-two thousand, nine hundred twenty-seven".

Divisors: 1 3 7 9 21 27 63 81 189 243 567 1701 17027 51081 119189 153243 357567 459729 1072701 1379187 3218103 4137561 9654309 28962927