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287042334 = 2347840389
BaseRepresentation
bin10001000110111…
…110101100011110
3202000010021001120
4101012332230132
51041440323314
644252151410
710053551055
oct2106765436
9660107046
10287042334
11138034177
1280168566
1347611c47
142a19d39c
151a2ee8a9
hex111beb1e

287042334 has 8 divisors (see below), whose sum is σ = 574084680. Its totient is φ = 95680776.

The previous prime is 287042321. The next prime is 287042341. The reversal of 287042334 is 433240782.

It is a sphenic number, since it is the product of 3 distinct primes.

287042334 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 287042295 and 287042304.

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, 23920189 + ... + 23920200.

It is an arithmetic number, because the mean of its divisors is an integer number (71760585).

Almost surely, 2287042334 is an apocalyptic number.

287042334 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

287042334 is a wasteful number, since it uses less digits than its factorization.

287042334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47840394.

The product of its (nonzero) digits is 32256, while the sum is 33.

The square root of 287042334 is about 16942.3237485299. The cubic root of 287042334 is about 659.6526592927.

The spelling of 287042334 in words is "two hundred eighty-seven million, forty-two thousand, three hundred thirty-four".

Divisors: 1 2 3 6 47840389 95680778 143521167 287042334