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285988002 = 2371966293
BaseRepresentation
bin10001000010111…
…101010010100010
3201221010200210020
4101002331102202
51041203104002
644213414310
710041600156
oct2102752242
9657120706
10285988002
11137484023
127b93a396
1347333091
1429da7066
151a1922bc
hex110bd4a2

285988002 has 16 divisors (see below), whose sum is σ = 572780160. Its totient is φ = 95195312.

The previous prime is 285987983. The next prime is 285988007. The reversal of 285988002 is 200889582.

It is not an unprimeable number, because it can be changed into a prime (285988007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28833 + ... + 37460.

It is an arithmetic number, because the mean of its divisors is an integer number (35798760).

Almost surely, 2285988002 is an apocalyptic number.

285988002 is an abundant number, since it is smaller than the sum of its proper divisors (286792158).

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

285988002 is a wasteful number, since it uses less digits than its factorization.

285988002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67017.

The product of its (nonzero) digits is 92160, while the sum is 42.

The square root of 285988002 is about 16911.1797932610. The cubic root of 285988002 is about 658.8440141293.

The spelling of 285988002 in words is "two hundred eighty-five million, nine hundred eighty-eight thousand, two".

Divisors: 1 2 3 6 719 1438 2157 4314 66293 132586 198879 397758 47664667 95329334 142994001 285988002