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286981112 = 23113379677
BaseRepresentation
bin10001000110101…
…111101111111000
3202000000011002002
4101012233233320
51041431343422
644251000132
710053204425
oct2106575770
9660004062
10286981112
11137aa2180
1280139048
13475c0112
142a184d4c
151a2db692
hex111afbf8

286981112 has 32 divisors (see below), whose sum is σ = 588809520. Its totient is φ = 130045440.

The previous prime is 286981109. The next prime is 286981127. The reversal of 286981112 is 211189682.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24818 + ... + 34494.

Almost surely, 2286981112 is an apocalyptic number.

286981112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

286981112 is an abundant number, since it is smaller than the sum of its proper divisors (301828408).

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

286981112 is a wasteful number, since it uses less digits than its factorization.

286981112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10031 (or 10027 counting only the distinct ones).

The product of its digits is 13824, while the sum is 38.

The square root of 286981112 is about 16940.5168752314. The cubic root of 286981112 is about 659.6057578176.

The spelling of 286981112 in words is "two hundred eighty-six million, nine hundred eighty-one thousand, one hundred twelve".

Divisors: 1 2 4 8 11 22 44 88 337 674 1348 2696 3707 7414 9677 14828 19354 29656 38708 77416 106447 212894 425788 851576 3261149 6522298 13044596 26089192 35872639 71745278 143490556 286981112