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13037985806 = 228123199263
BaseRepresentation
bin11000010010001111…
…11110000000001110
31020122122021022012012
430021013332000032
5203200211021211
65553425141222
7641044023266
oct141107760016
936578238165
1013037985806
11559066a78a
12263a48a812
1312ca211801
148b98167a6
15514956d8b
hex3091fe00e

13037985806 has 8 divisors (see below), whose sum is σ = 19626577344. Its totient is φ = 6495793360.

The previous prime is 13037985799. The next prime is 13037985823. The reversal of 13037985806 is 60858973031.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11599070 + ... + 11600193.

It is an arithmetic number, because the mean of its divisors is an integer number (2453322168).

Almost surely, 213037985806 is an apocalyptic number.

13037985806 is a deficient number, since it is larger than the sum of its proper divisors (6588591538).

13037985806 is a wasteful number, since it uses less digits than its factorization.

13037985806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23199546.

The product of its (nonzero) digits is 1088640, while the sum is 50.

Adding to 13037985806 its sum of digits (50), we get a square (13037985856 = 1141842).

The spelling of 13037985806 in words is "thirteen billion, thirty-seven million, nine hundred eighty-five thousand, eight hundred six".

Divisors: 1 2 281 562 23199263 46398526 6518992903 13037985806