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23300120220 = 22351383491733
BaseRepresentation
bin10101101100110010…
…111001111010011100
32020010211021202010120
4111230302321322130
5340204312321340
614412014234540
71453253516436
oct255462717234
966124252116
1023300120220
119977346203
1246231b5a50
1322742cc8b0
1411b06d3656
159158444d0
hex56ccb9e9c

23300120220 has 192 divisors, whose sum is σ = 71347336704. Its totient is φ = 5647057920.

The previous prime is 23300120201. The next prime is 23300120227. The reversal of 23300120220 is 2202100332.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 23300120220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23300120227) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 31786974 + ... + 31787706.

It is an arithmetic number, because the mean of its divisors is an integer number (371600712).

Almost surely, 223300120220 is an apocalyptic number.

23300120220 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 23300120220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35673668352).

23300120220 is an abundant number, since it is smaller than the sum of its proper divisors (48047216484).

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

23300120220 is a wasteful number, since it uses less digits than its factorization.

23300120220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1332 (or 1330 counting only the distinct ones).

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

Adding to 23300120220 its reverse (2202100332), we get a palindrome (25502220552).

The spelling of 23300120220 in words is "twenty-three billion, three hundred million, one hundred twenty thousand, two hundred twenty".