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2090193813 = 321271828691
BaseRepresentation
bin111110010010101…
…1101001110010101
312101200001211212200
41330211131032111
513240042200223
6543224035113
7102540232341
oct17445351625
95350054780
102090193813
11982950604
124a4002a99
13274066596
1415b856621
15c377ba43
hex7c95d395

2090193813 has 12 divisors (see below), whose sum is σ = 3042943488. Its totient is φ = 1382489640.

The previous prime is 2090193803. The next prime is 2090193827. The reversal of 2090193813 is 3183910902.

It is not a de Polignac number, because 2090193813 - 213 = 2090185621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2090193803) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 913203 + ... + 915488.

It is an arithmetic number, because the mean of its divisors is an integer number (253578624).

Almost surely, 22090193813 is an apocalyptic number.

It is an amenable number.

2090193813 is a deficient number, since it is larger than the sum of its proper divisors (952749675).

2090193813 is a wasteful number, since it uses less digits than its factorization.

2090193813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1828824 (or 1828821 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 2090193813 is about 45718.6374796975. The cubic root of 2090193813 is about 1278.5827846698.

The spelling of 2090193813 in words is "two billion, ninety million, one hundred ninety-three thousand, eight hundred thirteen".

Divisors: 1 3 9 127 381 1143 1828691 5486073 16458219 232243757 696731271 2090193813