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810849429039 = 31321001990001
BaseRepresentation
bin10111100110010100110…
…01000110011000101111
32212111221111020211200210
423303022121012120233
5101241104423212124
61420255445153503
7112403414266326
oct13631231063057
92774844224623
10810849429039
11292974400381
121111939bb893
135b602935280
142b36123d0bd
151615aa3ca29
hexbcca64662f

810849429039 has 16 divisors (see below), whose sum is σ = 1164353232224. Its totient is φ = 498960000000.

The previous prime is 810849429001. The next prime is 810849429067. The reversal of 810849429039 is 930924948018.

It is not a de Polignac number, because 810849429039 - 219 = 810848904751 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 810849429039.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (810849429239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 324039 + ... + 1314039.

It is an arithmetic number, because the mean of its divisors is an integer number (72772077014).

Almost surely, 2810849429039 is an apocalyptic number.

810849429039 is a deficient number, since it is larger than the sum of its proper divisors (353503803185).

810849429039 is a wasteful number, since it uses less digits than its factorization.

810849429039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011018.

The product of its (nonzero) digits is 4478976, while the sum is 57.

The spelling of 810849429039 in words is "eight hundred ten billion, eight hundred forty-nine million, four hundred twenty-nine thousand, thirty-nine".

Divisors: 1 3 13 39 21001 63003 273013 819039 990001 2970003 12870013 38610039 20791011001 62373033003 270283143013 810849429039