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287072076 = 22346151893
BaseRepresentation
bin10001000111000…
…101111101001100
3202000011202212010
4101013011331030
51041442301301
644252541220
710054033554
oct2107057514
9660152763
10287072076
11138054555
1280181810
1347622645
142a1aa164
151a3085d6
hex111c5f4c

287072076 has 24 divisors (see below), whose sum is σ = 671300784. Its totient is φ = 95481280.

The previous prime is 287072069. The next prime is 287072089. The reversal of 287072076 is 670270782.

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, 20415 + ... + 31478.

It is an arithmetic number, because the mean of its divisors is an integer number (27970866).

Almost surely, 2287072076 is an apocalyptic number.

It is an amenable number.

287072076 is an abundant number, since it is smaller than the sum of its proper divisors (384228708).

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

287072076 is a wasteful number, since it uses less digits than its factorization.

287072076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52361 (or 52359 counting only the distinct ones).

The product of its (nonzero) digits is 65856, while the sum is 39.

The square root of 287072076 is about 16943.2014684357. The cubic root of 287072076 is about 659.6754418924.

The spelling of 287072076 in words is "two hundred eighty-seven million, seventy-two thousand, seventy-six".

Divisors: 1 2 3 4 6 12 461 922 1383 1844 2766 5532 51893 103786 155679 207572 311358 622716 23922673 47845346 71768019 95690692 143536038 287072076