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3870857087 = 80921372239
BaseRepresentation
bin1110011010111000…
…1001011101111111
3100222202200220200022
43212232021131333
530411414411322
61440033522355
7164631512426
oct34656113577
910882626608
103870857087
111706aa8249
129004133bb
13498c460a6
1428a1382bd
15179c65942
hexe6b8977f

3870857087 has 8 divisors (see below), whose sum is σ = 3879187200. Its totient is φ = 3862537344.

The previous prime is 3870857077. The next prime is 3870857113. The reversal of 3870857087 is 7807580783.

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 3870857087 - 28 = 3870856831 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 (3870857077) 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, 1727714 + ... + 1729952.

It is an arithmetic number, because the mean of its divisors is an integer number (484898400).

Almost surely, 23870857087 is an apocalyptic number.

3870857087 is a deficient number, since it is larger than the sum of its proper divisors (8330113).

3870857087 is a wasteful number, since it uses less digits than its factorization.

3870857087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5185.

The product of its (nonzero) digits is 2634240, while the sum is 53.

The square root of 3870857087 is about 62216.2124128430. The cubic root of 3870857087 is about 1570.1303645789.

The spelling of 3870857087 in words is "three billion, eight hundred seventy million, eight hundred fifty-seven thousand, eighty-seven".

Divisors: 1 809 2137 2239 1728833 1811351 4784743 3870857087