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23020110 = 23251371867
BaseRepresentation
bin101011111010…
…0001001001110
31121022112122200
41113310021032
521343120420
62141222330
7366445011
oct127641116
947275580
1023020110
1111aa3393
1278619a6
1349ccc89
1430b3378
15204ab90
hex15f424e

23020110 has 48 divisors (see below), whose sum is σ = 60321456. Its totient is φ = 6090624.

The previous prime is 23020099. The next prime is 23020111. The reversal of 23020110 is 1102032.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 23020092 and 23020101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23020111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11397 + ... + 13263.

It is an arithmetic number, because the mean of its divisors is an integer number (1256697).

Almost surely, 223020110 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23020110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30160728).

23020110 is an abundant number, since it is smaller than the sum of its proper divisors (37301346).

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

23020110 is a wasteful number, since it uses less digits than its factorization.

23020110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2017 (or 2014 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 23020110 is about 4797.9276776542. The cubic root of 23020110 is about 284.4695581374.

Adding to 23020110 its reverse (1102032), we get a palindrome (24122142).

The spelling of 23020110 in words is "twenty-three million, twenty thousand, one hundred ten".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 137 274 411 685 822 1233 1370 1867 2055 2466 3734 4110 5601 6165 9335 11202 12330 16803 18670 28005 33606 56010 84015 168030 255779 511558 767337 1278895 1534674 2302011 2557790 3836685 4604022 7673370 11510055 23020110