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20023032133 = 138318557027
BaseRepresentation
bin10010101001011101…
…110011100101000101
31220200102212102101201
4102221131303211011
5312001344012013
613110511022501
71306121651656
oct225135634505
956612772351
1020023032133
118545530445
123a6980aa31
131b713b0210
14d7d39d52d
157c2cba3dd
hex4a9773945

20023032133 has 8 divisors (see below), whose sum is σ = 21823064928. Its totient is φ = 18260113584.

The previous prime is 20023032109. The next prime is 20023032151. The reversal of 20023032133 is 33123032002.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-20023032133 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20023032133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20023032433) 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, 9277435 + ... + 9279592.

It is an arithmetic number, because the mean of its divisors is an integer number (2727883116).

Almost surely, 220023032133 is an apocalyptic number.

It is an amenable number.

20023032133 is a deficient number, since it is larger than the sum of its proper divisors (1800032795).

20023032133 is a wasteful number, since it uses less digits than its factorization.

20023032133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18557123.

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 20023032133 its reverse (33123032002), we get a palindrome (53146064135).

The spelling of 20023032133 in words is "twenty billion, twenty-three million, thirty-two thousand, one hundred thirty-three".

Divisors: 1 13 83 1079 18557027 241241351 1540233241 20023032133