Search a number
-
+
23020020120 = 233523833172
BaseRepresentation
bin10101011100000110…
…011010000110011000
32012102022020012000210
4111130012122012120
5334121111120440
614324130531120
71443312641166
oct253406320630
965368205023
1023020020120
119843223919
124565436aa0
13222b27b7a6
141185420236
158eae66a80
hex55c19a198

23020020120 has 192 divisors, whose sum is σ = 73161688320. Its totient is φ = 5782729216.

The previous prime is 23020020109. The next prime is 23020020131. The reversal of 23020020120 is 2102002032.

It is an interprime number because it is at equal distance from previous prime (23020020109) and next prime (23020020131).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 23020020096 and 23020020105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 72618202 + ... + 72618518.

It is an arithmetic number, because the mean of its divisors is an integer number (381050460).

Almost surely, 223020020120 is an apocalyptic number.

23020020120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23020020120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36580844160).

23020020120 is an abundant number, since it is smaller than the sum of its proper divisors (50141668200).

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

23020020120 is a wasteful number, since it uses less digits than its factorization.

23020020120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 754 (or 433 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

Adding to 23020020120 its reverse (2102002032), we get a palindrome (25122022152).

The spelling of 23020020120 in words is "twenty-three billion, twenty million, twenty thousand, one hundred twenty".