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24164420 = 2257172603
BaseRepresentation
bin101110000101…
…1100001000100
31200110200100112
41130023201010
522141230140
62221532152
7412252130
oct134134104
950420315
1024164420
11127050a5
128114058
135010a97
1432d03c0
1521c4c65
hex170b844

24164420 has 24 divisors (see below), whose sum is σ = 57994944. Its totient is φ = 8284896.

The previous prime is 24164419. The next prime is 24164423. The reversal of 24164420 is 2446142.

It is not an unprimeable number, because it can be changed into a prime (24164423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86162 + ... + 86441.

It is an arithmetic number, because the mean of its divisors is an integer number (2416456).

Almost surely, 224164420 is an apocalyptic number.

24164420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

24164420 is an abundant number, since it is smaller than the sum of its proper divisors (33830524).

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

24164420 is a wasteful number, since it uses less digits than its factorization.

24164420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172619 (or 172617 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 24164420 is about 4915.7318885391. The cubic root of 24164420 is about 289.1071229577.

The spelling of 24164420 in words is "twenty-four million, one hundred sixty-four thousand, four hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 172603 345206 690412 863015 1208221 1726030 2416442 3452060 4832884 6041105 12082210 24164420