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287051413 = 1131841793
BaseRepresentation
bin10001000111000…
…000111010010101
3202000010201111211
4101013000322111
51041441121123
644252301421
710053616405
oct2107007225
9660121454
10287051413
1113803aa80
1280171871
134761610c
142a1a2805
151a30240d
hex111c0e95

287051413 has 8 divisors (see below), whose sum is σ = 323248896. Its totient is φ = 252537600.

The previous prime is 287051371. The next prime is 287051437. The reversal of 287051413 is 314150782.

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

It is a cyclic number.

It is not a de Polignac number, because 287051413 - 29 = 287050901 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (287051473) 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, 420556 + ... + 421237.

It is an arithmetic number, because the mean of its divisors is an integer number (40406112).

Almost surely, 2287051413 is an apocalyptic number.

It is an amenable number.

287051413 is a deficient number, since it is larger than the sum of its proper divisors (36197483).

287051413 is a wasteful number, since it uses less digits than its factorization.

287051413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 841835.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 287051413 is about 16942.5916848633. The cubic root of 287051413 is about 659.6596140431.

The spelling of 287051413 in words is "two hundred eighty-seven million, fifty-one thousand, four hundred thirteen".

Divisors: 1 11 31 341 841793 9259723 26095583 287051413