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28262164 = 2278312161
BaseRepresentation
bin110101111001…
…1111100010100
31222011212101211
41223303330110
524213342124
62445431204
7462136660
oct153637424
958155354
1028262164
1114a53867
12956b504
135b16c98
143a798a0
152733e94
hex1af3f14

28262164 has 24 divisors (see below), whose sum is σ = 57210048. Its totient is φ = 11965440.

The previous prime is 28262159. The next prime is 28262183. The reversal of 28262164 is 46126282.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3757 + ... + 8404.

It is an arithmetic number, because the mean of its divisors is an integer number (2383752).

Almost surely, 228262164 is an apocalyptic number.

It is an amenable number.

28262164 is an abundant number, since it is smaller than the sum of its proper divisors (28947884).

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

28262164 is a wasteful number, since it uses less digits than its factorization.

28262164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12255 (or 12253 counting only the distinct ones).

The product of its digits is 9216, while the sum is 31.

The square root of 28262164 is about 5316.2170760796. The cubic root of 28262164 is about 304.6036740637.

The spelling of 28262164 in words is "twenty-eight million, two hundred sixty-two thousand, one hundred sixty-four".

Divisors: 1 2 4 7 14 28 83 166 332 581 1162 2324 12161 24322 48644 85127 170254 340508 1009363 2018726 4037452 7065541 14131082 28262164