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28346956 = 22111737897
BaseRepresentation
bin110110000100…
…0101001001100
31222100011201021
41230020221030
524224100311
62451323524
7462642121
oct154105114
958304637
1028346956
1115001540
1295b05a4
135b46761
143a9c748
15274e171
hex1b08a4c

28346956 has 24 divisors (see below), whose sum is σ = 57301776. Its totient is φ = 12126720.

The previous prime is 28346947. The next prime is 28346957. The reversal of 28346956 is 65964382.

It is not an unprimeable number, because it can be changed into a prime (28346957) 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, 18201 + ... + 19696.

It is an arithmetic number, because the mean of its divisors is an integer number (2387574).

Almost surely, 228346956 is an apocalyptic number.

It is an amenable number.

28346956 is an abundant number, since it is smaller than the sum of its proper divisors (28954820).

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

28346956 is a wasteful number, since it uses less digits than its factorization.

28346956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37929 (or 37927 counting only the distinct ones).

The product of its digits is 311040, while the sum is 43.

The square root of 28346956 is about 5324.1859471660. The cubic root of 28346956 is about 304.9079933893.

The spelling of 28346956 in words is "twenty-eight million, three hundred forty-six thousand, nine hundred fifty-six".

Divisors: 1 2 4 11 17 22 34 44 68 187 374 748 37897 75794 151588 416867 644249 833734 1288498 1667468 2576996 7086739 14173478 28346956