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20032001223 = 313513641057
BaseRepresentation
bin10010101010000000…
…000001010011000111
31220201001202002200020
4102222000001103013
5312011143014343
613111431150223
71306261125633
oct225200012307
956631662606
1020032001223
11854a5a7013
123a70815373
131b73200780
14d80655dc3
157c398cb83
hex4aa0014c7

20032001223 has 8 divisors (see below), whose sum is σ = 28763899248. Its totient is φ = 12327385344.

The previous prime is 20032001203. The next prime is 20032001237. The reversal of 20032001223 is 32210023002.

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

It is not a de Polignac number, because 20032001223 - 213 = 20031993031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20032001203) 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, 256820490 + ... + 256820567.

It is an arithmetic number, because the mean of its divisors is an integer number (3595487406).

Almost surely, 220032001223 is an apocalyptic number.

20032001223 is a deficient number, since it is larger than the sum of its proper divisors (8731898025).

20032001223 is a wasteful number, since it uses less digits than its factorization.

20032001223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513641073.

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 20032001223 its reverse (32210023002), we get a palindrome (52242024225).

The spelling of 20032001223 in words is "twenty billion, thirty-two million, one thousand, two hundred twenty-three".

Divisors: 1 3 13 39 513641057 1540923171 6677333741 20032001223