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2086656397 = 7541955009
BaseRepresentation
bin111110001011111…
…1101100110001101
312101102102010110021
41330113331212031
513233141001042
6543020142141
7102465200230
oct17427754615
95342363407
102086656397
11980954921
124a2997951
132733c8437
1415b1b5417
15c32cd867
hex7c5fd98d

2086656397 has 8 divisors (see below), whose sum is σ = 2385233600. Its totient is φ = 1788200064.

The previous prime is 2086656391. The next prime is 2086656409. The reversal of 2086656397 is 7936566802.

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

It is not a de Polignac number, because 2086656397 - 23 = 2086656389 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 (2086656391) 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, 10429 + ... + 65437.

It is an arithmetic number, because the mean of its divisors is an integer number (298154200).

Almost surely, 22086656397 is an apocalyptic number.

It is an amenable number.

2086656397 is a deficient number, since it is larger than the sum of its proper divisors (298577203).

2086656397 is an equidigital number, since it uses as much as digits as its factorization.

2086656397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60435.

The product of its (nonzero) digits is 3265920, while the sum is 52.

The square root of 2086656397 is about 45679.9342928599. The cubic root of 2086656397 is about 1277.8610919317.

The spelling of 2086656397 in words is "two billion, eighty-six million, six hundred fifty-six thousand, three hundred ninety-seven".

Divisors: 1 7 5419 37933 55009 385063 298093771 2086656397