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2856713087 = 9912882657
BaseRepresentation
bin1010101001000101…
…1111101101111111
321101002102001122102
42222101133231333
521322304304322
61151245135315
7130535442404
oct25221375577
97332361572
102856713087
1112365a3908
1267885a53b
13366ac6097
141d15882ab
1511abdd792
hexaa45fb7f

2856713087 has 4 divisors (see below), whose sum is σ = 2859596736. Its totient is φ = 2853829440.

The previous prime is 2856713059. The next prime is 2856713107. The reversal of 2856713087 is 7803176582.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2856713087 - 212 = 2856708991 is a prime.

It is a super-2 number, since 2×28567130872 = 16321619322874139138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2856713017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1440338 + ... + 1442319.

It is an arithmetic number, because the mean of its divisors is an integer number (714899184).

Almost surely, 22856713087 is an apocalyptic number.

2856713087 is a deficient number, since it is larger than the sum of its proper divisors (2883649).

2856713087 is an equidigital number, since it uses as much as digits as its factorization.

2856713087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2883648.

The product of its (nonzero) digits is 564480, while the sum is 47.

The square root of 2856713087 is about 53448.2280997228. The cubic root of 2856713087 is about 1418.9122607873.

The spelling of 2856713087 in words is "two billion, eight hundred fifty-six million, seven hundred thirteen thousand, eighty-seven".

Divisors: 1 991 2882657 2856713087