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284274132 = 22323689511
BaseRepresentation
bin10000111100011…
…010110111010100
3201210220121210120
4100330122313110
51040233233012
644112551540
710021201362
oct2074326724
9653817716
10284274132
111365133aa
127b2525b0
1346b82c5c
1429a7c632
1519e5458c
hex10f1add4

284274132 has 12 divisors (see below), whose sum is σ = 663306336. Its totient is φ = 94758040.

The previous prime is 284274103. The next prime is 284274149. The reversal of 284274132 is 231472482.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 284274093 and 284274102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11844744 + ... + 11844767.

It is an arithmetic number, because the mean of its divisors is an integer number (55275528).

Almost surely, 2284274132 is an apocalyptic number.

It is an amenable number.

284274132 is an abundant number, since it is smaller than the sum of its proper divisors (379032204).

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

284274132 is a wasteful number, since it uses less digits than its factorization.

284274132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23689518 (or 23689516 counting only the distinct ones).

The product of its digits is 21504, while the sum is 33.

The square root of 284274132 is about 16860.4309553463. The cubic root of 284274132 is about 657.5252686342.

The spelling of 284274132 in words is "two hundred eighty-four million, two hundred seventy-four thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 12 23689511 47379022 71068533 94758044 142137066 284274132