Search a number
-
+
20023200030 = 235667440001
BaseRepresentation
bin10010101001011110…
…011100100100011110
31220200110011221201010
4102221132130210132
5312001414400110
613110514400050
71306123251321
oct225136344436
956613157633
1020023200030
1185456355a9
123a69890026
131b7143b772
14d7d4047b8
157c2d00020
hex4a979c91e

20023200030 has 16 divisors (see below), whose sum is σ = 48055680144. Its totient is φ = 5339520000.

The previous prime is 20023200019. The next prime is 20023200089. The reversal of 20023200030 is 3000232002.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20023199979 and 20023200015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 333719971 + ... + 333720030.

It is an arithmetic number, because the mean of its divisors is an integer number (3003480009).

Almost surely, 220023200030 is an apocalyptic number.

20023200030 is an abundant number, since it is smaller than the sum of its proper divisors (28032480114).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20023200030 is a wasteful number, since it uses less digits than its factorization.

20023200030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667440011.

The product of its (nonzero) digits is 72, while the sum is 12.

Adding to 20023200030 its reverse (3000232002), we get a palindrome (23023432032).

The spelling of 20023200030 in words is "twenty billion, twenty-three million, two hundred thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 667440001 1334880002 2002320003 3337200005 4004640006 6674400010 10011600015 20023200030