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285244950 = 23523161343
BaseRepresentation
bin10001000000000…
…111111000010110
3201212201221111210
4101000013320112
51041010314300
644145442250
710032353634
oct2100077026
9655657453
10285244950
11137016831
127b640386
1347132ac3
1429c52354
151a097050
hex11007e16

285244950 has 48 divisors (see below), whose sum is σ = 730238976. Its totient is φ = 73610400.

The previous prime is 285244937. The next prime is 285244963. The reversal of 285244950 is 59442582.

It is an interprime number because it is at equal distance from previous prime (285244937) and next prime (285244963).

It is a junction number, because it is equal to n+sod(n) for n = 285244899 and 285244908.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26022 + ... + 35321.

It is an arithmetic number, because the mean of its divisors is an integer number (15213312).

Almost surely, 2285244950 is an apocalyptic number.

285244950 is an abundant number, since it is smaller than the sum of its proper divisors (444994026).

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

285244950 is a wasteful number, since it uses less digits than its factorization.

285244950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61389 (or 61384 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 39.

The square root of 285244950 is about 16889.1962508581. The cubic root of 285244950 is about 658.2729179546.

The spelling of 285244950 in words is "two hundred eighty-five million, two hundred forty-four thousand, nine hundred fifty".

Divisors: 1 2 3 5 6 10 15 25 30 31 50 62 75 93 150 155 186 310 465 775 930 1550 2325 4650 61343 122686 184029 306715 368058 613430 920145 1533575 1840290 1901633 3067150 3803266 4600725 5704899 9201450 9508165 11409798 19016330 28524495 47540825 57048990 95081650 142622475 285244950