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284801132 = 227311113167
BaseRepresentation
bin10000111110011…
…011100001101100
3201211220101201002
4100332123201230
51040402114012
644132135432
710025525000
oct2076334154
9654811632
10284801132
11136843340
127b467578
1347008aa5
1429b78700
151a00a7c2
hex10f9b86c

284801132 has 96 divisors (see below), whose sum is σ = 643507200. Its totient is φ = 109320960.

The previous prime is 284801107. The next prime is 284801159. The reversal of 284801132 is 231108482.

284801132 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2848011322 = 162223369576962848, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 284801095 and 284801104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1705313 + ... + 1705479.

It is an arithmetic number, because the mean of its divisors is an integer number (6703200).

Almost surely, 2284801132 is an apocalyptic number.

284801132 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 284801132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (321753600).

284801132 is an abundant number, since it is smaller than the sum of its proper divisors (358706068).

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

284801132 is a wasteful number, since it uses less digits than its factorization.

284801132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316 (or 300 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 284801132 is about 16876.0520264664. The cubic root of 284801132 is about 657.9313343164.

The spelling of 284801132 in words is "two hundred eighty-four million, eight hundred one thousand, one hundred thirty-two".

Divisors: 1 2 4 7 11 14 22 28 44 49 77 98 113 154 167 196 226 308 334 343 452 539 668 686 791 1078 1169 1243 1372 1582 1837 2156 2338 2486 3164 3674 3773 4676 4972 5537 7348 7546 8183 8701 11074 12859 15092 16366 17402 18871 22148 25718 32732 34804 37742 38759 51436 57281 60907 75484 77518 90013 114562 121814 132097 155036 180026 207581 229124 243628 264194 360052 415162 426349 528388 630091 830324 852698 924679 1260182 1453067 1705396 1849358 2520364 2906134 3698716 5812268 6472753 10171469 12945506 20342938 25891012 40685876 71200283 142400566 284801132