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20102103331 = 672797107269
BaseRepresentation
bin10010101110001011…
…011100000100100011
31220212221122122200121
4102232023130010203
5312132114301311
613122413501111
71311102026152
oct225613340443
956787578617
1020102103331
118586127842
123a901a1797
131b848a68cb
14d89aa3599
157c9bd8b71
hex4ae2dc123

20102103331 has 8 divisors (see below), whose sum is σ = 20409619280. Its totient is φ = 19794807648.

The previous prime is 20102103319. The next prime is 20102103347. The reversal of 20102103331 is 13330120102.

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

It is a cyclic number.

It is not a de Polignac number, because 20102103331 - 25 = 20102103299 is a prime.

It is a super-2 number, since 2×201021033312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20102103361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133765 + ... + 241033.

It is an arithmetic number, because the mean of its divisors is an integer number (2551202410).

Almost surely, 220102103331 is an apocalyptic number.

20102103331 is a deficient number, since it is larger than the sum of its proper divisors (307515949).

20102103331 is a wasteful number, since it uses less digits than its factorization.

20102103331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110133.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 20102103331 its reverse (13330120102), we get a palindrome (33432223433).

The spelling of 20102103331 in words is "twenty billion, one hundred two million, one hundred three thousand, three hundred thirty-one".

Divisors: 1 67 2797 107269 187399 7187023 300031393 20102103331