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28967382 = 2341631097
BaseRepresentation
bin110111010000…
…0000111010110
32000111200210000
41232200013112
524403424012
62512512130
7501135003
oct156400726
960450700
1028967382
1115395694
12984b646
136002c82
143bc08aa
152822ddc
hex1ba01d6

28967382 has 40 divisors (see below), whose sum is σ = 65366136. Its totient is φ = 9587808.

The previous prime is 28967377. The next prime is 28967399. The reversal of 28967382 is 28376982.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 25858 + ... + 26954.

Almost surely, 228967382 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28967382, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32683068).

28967382 is an abundant number, since it is smaller than the sum of its proper divisors (36398754).

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

28967382 is a wasteful number, since it uses less digits than its factorization.

28967382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1274 (or 1265 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 28967382 is about 5382.1354498006. The cubic root of 28967382 is about 307.1164521945.

The spelling of 28967382 in words is "twenty-eight million, nine hundred sixty-seven thousand, three hundred eighty-two".

Divisors: 1 2 3 6 9 18 27 54 81 162 163 326 489 978 1097 1467 2194 2934 3291 4401 6582 8802 9873 13203 19746 26406 29619 59238 88857 177714 178811 357622 536433 1072866 1609299 3218598 4827897 9655794 14483691 28967382