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5100160221 = 34134843457
BaseRepresentation
bin1001011111111111…
…00100010011011101
3111011102211222120000
410233333210103131
540421120111341
62202030044513
7240246434532
oct45777442335
914142758500
105100160221
1121879a8952
12ba4049739
1363382a2b0
143654d4d89
151ecb3d8b6
hex12ffe44dd

5100160221 has 20 divisors (see below), whose sum is σ = 8204817852. Its totient is φ = 3138559488.

The previous prime is 5100160201. The next prime is 5100160223. The reversal of 5100160221 is 1220610015.

It can be written as a sum of positive squares in 2 ways, for example, as 1981496196 + 3118664025 = 44514^2 + 55845^2 .

It is not a de Polignac number, because 5100160221 - 25 = 5100160189 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 5100160194 and 5100160203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5100160223) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2420676 + ... + 2422781.

Almost surely, 25100160221 is an apocalyptic number.

It is an amenable number.

5100160221 is a deficient number, since it is larger than the sum of its proper divisors (3104657631).

5100160221 is a wasteful number, since it uses less digits than its factorization.

5100160221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4843482 (or 4843473 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 5100160221 is about 71415.4060479950. The cubic root of 5100160221 is about 1721.3186459302.

Adding to 5100160221 its reverse (1220610015), we get a palindrome (6320770236).

The spelling of 5100160221 in words is "five billion, one hundred million, one hundred sixty thousand, two hundred twenty-one".

Divisors: 1 3 9 13 27 39 81 117 351 1053 4843457 14530371 43591113 62964941 130773339 188894823 392320017 566684469 1700053407 5100160221