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24400324220 = 2251220016211
BaseRepresentation
bin10110101110010111…
…110110011001111100
32022222111111220021212
4112232113312121330
5344432440333340
615113115343552
71522443222326
oct265627663174
968874456255
1024400324220
11a39138a808
12488b751bb8
1323bb22238c
141276886616
1597c21aa65
hex5ae5f667c

24400324220 has 12 divisors (see below), whose sum is σ = 51240680904. Its totient is φ = 9760129680.

The previous prime is 24400324211. The next prime is 24400324231. The reversal of 24400324220 is 2242300442.

It is a super-2 number, since 2×244003242202 (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 610008086 + ... + 610008125.

It is an arithmetic number, because the mean of its divisors is an integer number (4270056742).

Almost surely, 224400324220 is an apocalyptic number.

24400324220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

24400324220 is an abundant number, since it is smaller than the sum of its proper divisors (26840356684).

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

24400324220 is a wasteful number, since it uses less digits than its factorization.

24400324220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1220016220 (or 1220016218 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 23.

Adding to 24400324220 its reverse (2242300442), we get a palindrome (26642624662).

The spelling of 24400324220 in words is "twenty-four billion, four hundred million, three hundred twenty-four thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 1220016211 2440032422 4880064844 6100081055 12200162110 24400324220