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23320303220 = 2251975838093
BaseRepresentation
bin10101101101111111…
…111001011001110100
32020012020021011000002
4111231333321121310
5340224444200340
614414015010432
71453620210134
oct255577713164
966166234002
1023320303220
119987780a75
124629b09a18
1322785483b6
1411b3268ac4
159174ce715
hex56dff9674

23320303220 has 48 divisors (see below), whose sum is σ = 51563312640. Its totient is φ = 8834910336.

The previous prime is 23320303211. The next prime is 23320303229. The reversal of 23320303220 is 2230302332.

It is an interprime number because it is at equal distance from previous prime (23320303211) and next prime (23320303229).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 23320303192 and 23320303201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23320303229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2877494 + ... + 2885586.

It is an arithmetic number, because the mean of its divisors is an integer number (1074235680).

Almost surely, 223320303220 is an apocalyptic number.

23320303220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23320303220 is an abundant number, since it is smaller than the sum of its proper divisors (28243009420).

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

23320303220 is a wasteful number, since it uses less digits than its factorization.

23320303220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15704 (or 15702 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 20.

Adding to 23320303220 its reverse (2230302332), we get a palindrome (25550605552).

The spelling of 23320303220 in words is "twenty-three billion, three hundred twenty million, three hundred three thousand, two hundred twenty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 7583 8093 15166 16186 30332 32372 37915 40465 75830 80930 144077 151660 153767 161860 288154 307534 576308 615068 720385 768835 1440770 1537670 2881540 3075340 61369219 122738438 245476876 306846095 613692190 1166015161 1227384380 2332030322 4664060644 5830075805 11660151610 23320303220