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424340380 = 22521217019
BaseRepresentation
bin11001010010101…
…110101110011100
31002120110201120101
4121102232232130
51332112343010
6110035030444
713341555652
oct3122565634
91076421511
10424340380
111a8590232
12ba13b424
1369bb44a9
14404dcdd2
15273c073a
hex194aeb9c

424340380 has 12 divisors (see below), whose sum is σ = 891114840. Its totient is φ = 169736144.

The previous prime is 424340353. The next prime is 424340381. The reversal of 424340380 is 83043424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424340381) 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, 10608490 + ... + 10608529.

It is an arithmetic number, because the mean of its divisors is an integer number (74259570).

Almost surely, 2424340380 is an apocalyptic number.

It is an amenable number.

424340380 is an abundant number, since it is smaller than the sum of its proper divisors (466774460).

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

424340380 is a wasteful number, since it uses less digits than its factorization.

424340380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21217028 (or 21217026 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 424340380 is about 20599.5237809033. The cubic root of 424340380 is about 751.4581292343.

The spelling of 424340380 in words is "four hundred twenty-four million, three hundred forty thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 21217019 42434038 84868076 106085095 212170190 424340380