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20031011030 = 256132837723
BaseRepresentation
bin10010101001111100…
…001111100011010110
31220200222212210101102
4102221330033203112
5312010414323110
613111354030102
71306246533032
oct225174174326
956628783342
1020031011030
118549a90078
123a70418332
131b72c44b64
14d804791c2
157c38445a5
hex4a9f0f8d6

20031011030 has 16 divisors (see below), whose sum is σ = 36646899984. Its totient is φ = 7881053280.

The previous prime is 20031010957. The next prime is 20031011059. The reversal of 20031011030 is 3011013002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16418252 + ... + 16419471.

It is an arithmetic number, because the mean of its divisors is an integer number (2290431249).

Almost surely, 220031011030 is an apocalyptic number.

20031011030 is a deficient number, since it is larger than the sum of its proper divisors (16615888954).

20031011030 is a wasteful number, since it uses less digits than its factorization.

20031011030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32837791.

The product of its (nonzero) digits is 18, while the sum is 11.

Adding to 20031011030 its reverse (3011013002), we get a palindrome (23042024032).

The spelling of 20031011030 in words is "twenty billion, thirty-one million, eleven thousand, thirty".

Divisors: 1 2 5 10 61 122 305 610 32837723 65675446 164188615 328377230 2003101103 4006202206 10015505515 20031011030