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20102200131 = 313515441029
BaseRepresentation
bin10010101110001011…
…110011101101000011
31220212221211120110210
4102232023303231003
5312132130401011
613122415525203
71311102611316
oct225613635503
956787746423
1020102200131
118586193542
123a90229803
131b8490b9a0
14d89aca97d
157c9c076a6
hex4ae2f3b43

20102200131 has 8 divisors (see below), whose sum is σ = 28864697680. Its totient is φ = 12370584672.

The previous prime is 20102200081. The next prime is 20102200141. The reversal of 20102200131 is 13100220102.

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

It is not a de Polignac number, because 20102200131 - 213 = 20102191939 is a prime.

It is a super-2 number, since 2×201022001312 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20102200141) by changing a digit.

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, 257720476 + ... + 257720553.

It is an arithmetic number, because the mean of its divisors is an integer number (3608087210).

Almost surely, 220102200131 is an apocalyptic number.

20102200131 is a deficient number, since it is larger than the sum of its proper divisors (8762497549).

20102200131 is a wasteful number, since it uses less digits than its factorization.

20102200131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515441045.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 20102200131 its reverse (13100220102), we get a palindrome (33202420233).

The spelling of 20102200131 in words is "twenty billion, one hundred two million, two hundred thousand, one hundred thirty-one".

Divisors: 1 3 13 39 515441029 1546323087 6700733377 20102200131