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287041372 = 22591216277
BaseRepresentation
bin10001000110111…
…110011101011100
3202000010012201221
4101012332131130
51041440310442
644252143124
710053545212
oct2106763534
9660105657
10287041372
11138033482
1280167aa4
1347611687
142a19ccb2
151a2ee467
hex111be75c

287041372 has 12 divisors (see below), whose sum is σ = 510836760. Its totient is φ = 141088016.

The previous prime is 287041367. The next prime is 287041387. The reversal of 287041372 is 273140782.

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, 607903 + ... + 608374.

It is an arithmetic number, because the mean of its divisors is an integer number (42569730).

Almost surely, 2287041372 is an apocalyptic number.

It is an amenable number.

287041372 is a deficient number, since it is larger than the sum of its proper divisors (223795388).

287041372 is a wasteful number, since it uses less digits than its factorization.

287041372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1216340 (or 1216338 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 287041372 is about 16942.2953580676. The cubic root of 287041372 is about 659.6519223670.

The spelling of 287041372 in words is "two hundred eighty-seven million, forty-one thousand, three hundred seventy-two".

Divisors: 1 2 4 59 118 236 1216277 2432554 4865108 71760343 143520686 287041372