Search a number
-
+
28826292 = 22311218381
BaseRepresentation
bin110110111110…
…1101010110100
32000020112020110
41231331222310
524334420132
62505503020
7500006445
oct155755264
960215213
1028826292
11152a9690
1297a1a70
135c839a1
143b852cc
1527e61cc
hex1b7dab4

28826292 has 24 divisors (see below), whose sum is σ = 73376352. Its totient is φ = 8735200.

The previous prime is 28826267. The next prime is 28826351. The reversal of 28826292 is 29262882.

It is a super-2 number, since 2×288262922 = 1661910220938528, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28826292.

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, 109059 + ... + 109322.

It is an arithmetic number, because the mean of its divisors is an integer number (3057348).

Almost surely, 228826292 is an apocalyptic number.

28826292 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

28826292 is an abundant number, since it is smaller than the sum of its proper divisors (44550060).

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

28826292 is a wasteful number, since it uses less digits than its factorization.

28826292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218399 (or 218397 counting only the distinct ones).

The product of its digits is 55296, while the sum is 39.

The square root of 28826292 is about 5369.0121996509. The cubic root of 28826292 is about 306.6170214742.

The spelling of 28826292 in words is "twenty-eight million, eight hundred twenty-six thousand, two hundred ninety-two".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 218381 436762 655143 873524 1310286 2402191 2620572 4804382 7206573 9608764 14413146 28826292