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286338668 = 22711929671
BaseRepresentation
bin10001000100010…
…010111001101100
3201221210111210212
4101010102321230
51041300314133
644225121552
710044560420
oct2104227154
9657714725
10286338668
111376a3530
127ba892b8
1347426885
142a058b80
151a211148
hex11112e6c

286338668 has 24 divisors (see below), whose sum is σ = 624739584. Its totient is φ = 111560400.

The previous prime is 286338659. The next prime is 286338673. The reversal of 286338668 is 866833682.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 464528 + ... + 465143.

It is an arithmetic number, because the mean of its divisors is an integer number (26030816).

Almost surely, 2286338668 is an apocalyptic number.

286338668 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

286338668 is an abundant number, since it is smaller than the sum of its proper divisors (338400916).

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

286338668 is a wasteful number, since it uses less digits than its factorization.

286338668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929693 (or 929691 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 50.

The square root of 286338668 is about 16921.5444921556. The cubic root of 286338668 is about 659.1131860639.

The spelling of 286338668 in words is "two hundred eighty-six million, three hundred thirty-eight thousand, six hundred sixty-eight".

Divisors: 1 2 4 7 11 14 22 28 44 77 154 308 929671 1859342 3718684 6507697 10226381 13015394 20452762 26030788 40905524 71584667 143169334 286338668