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284025072 = 243192910739
BaseRepresentation
bin10000111011011…
…110000011110000
3201210102222011010
4100323132003300
51040202300242
644103350520
710016113302
oct2073360360
9653388133
10284025072
11136363271
127b152440
1346ac6796
1429a15972
1519e0589c
hex10ede0f0

284025072 has 80 divisors (see below), whose sum is σ = 799056000. Its totient is φ = 86591232.

The previous prime is 284025067. The next prime is 284025097. The reversal of 284025072 is 270520482.

284025072 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21079 + ... + 31817.

It is an arithmetic number, because the mean of its divisors is an integer number (9988200).

Almost surely, 2284025072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 284025072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (399528000).

284025072 is an abundant number, since it is smaller than the sum of its proper divisors (515030928).

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

284025072 is a wasteful number, since it uses less digits than its factorization.

284025072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10798 (or 10792 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 284025072 is about 16853.0434046792. The cubic root of 284025072 is about 657.3331875008. Note that the first 3 decimals are identical.

The spelling of 284025072 in words is "two hundred eighty-four million, twenty-five thousand, seventy-two".

Divisors: 1 2 3 4 6 8 12 16 19 24 29 38 48 57 58 76 87 114 116 152 174 228 232 304 348 456 464 551 696 912 1102 1392 1653 2204 3306 4408 6612 8816 10739 13224 21478 26448 32217 42956 64434 85912 128868 171824 204041 257736 311431 408082 515472 612123 622862 816164 934293 1224246 1245724 1632328 1868586 2448492 2491448 3264656 3737172 4896984 4982896 5917189 7474344 9793968 11834378 14948688 17751567 23668756 35503134 47337512 71006268 94675024 142012536 284025072