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23424444140 = 2251171222207
BaseRepresentation
bin10101110100001101…
…001010011011101100
32020110111020001111012
4111310031022123230
5340433124203030
614432215044352
71456323330026
oct256415123354
966414201435
1023424444140
119a30540649
1246589706b8
132293cab946
1411c3017016
15921701095
hex57434a6ec

23424444140 has 12 divisors (see below), whose sum is σ = 49191332736. Its totient is φ = 9369777648.

The previous prime is 23424444133. The next prime is 23424444149. The reversal of 23424444140 is 4144442432.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 23424444097 and 23424444106.

It is not an unprimeable number, because it can be changed into a prime (23424444149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 585611084 + ... + 585611123.

It is an arithmetic number, because the mean of its divisors is an integer number (4099277728).

Almost surely, 223424444140 is an apocalyptic number.

23424444140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23424444140 is an abundant number, since it is smaller than the sum of its proper divisors (25766888596).

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

23424444140 is a wasteful number, since it uses less digits than its factorization.

23424444140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1171222216 (or 1171222214 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 32.

Adding to 23424444140 its reverse (4144442432), we get a palindrome (27568886572).

The spelling of 23424444140 in words is "twenty-three billion, four hundred twenty-four million, four hundred forty-four thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 1171222207 2342444414 4684888828 5856111035 11712222070 23424444140