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287516413 = 3173127051
BaseRepresentation
bin10001001000110…
…010011011111101
3202001000100101001
4101020302123331
51042101011123
644310250301
710060564162
oct2110623375
9661010331
10287516413
11138328378
1280356991
1347749972
142a284069
151a3950ad
hex112326fd

287516413 has 8 divisors (see below), whose sum is σ = 300859136. Its totient is φ = 274428000.

The previous prime is 287516401. The next prime is 287516419. The reversal of 287516413 is 314615782.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-287516413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (287516419) 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, 61263 + ... + 65788.

It is an arithmetic number, because the mean of its divisors is an integer number (37607392).

Almost surely, 2287516413 is an apocalyptic number.

It is an amenable number.

287516413 is a deficient number, since it is larger than the sum of its proper divisors (13342723).

287516413 is a wasteful number, since it uses less digits than its factorization.

287516413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127155.

The product of its digits is 40320, while the sum is 37.

The square root of 287516413 is about 16956.3089438710. The cubic root of 287516413 is about 660.0156202303.

The spelling of 287516413 in words is "two hundred eighty-seven million, five hundred sixteen thousand, four hundred thirteen".

Divisors: 1 31 73 2263 127051 3938581 9274723 287516413