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424431441 = 3378812549
BaseRepresentation
bin11001010011000…
…100111101010001
31002120122100111000
4121103010331101
51332123301231
6110041012213
713342415310
oct3123047521
91076570430
10424431441
111a8642695
12ba184069
1369c16a85
1440524277
15273dc6e6
hex194c4f51

424431441 has 32 divisors (see below), whose sum is σ = 719712000. Its totient is φ = 242161920.

The previous prime is 424431439. The next prime is 424431487. The reversal of 424431441 is 144134424.

It is not a de Polignac number, because 424431441 - 21 = 424431439 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (424431421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 165235 + ... + 167783.

It is an arithmetic number, because the mean of its divisors is an integer number (22491000).

Almost surely, 2424431441 is an apocalyptic number.

It is an amenable number.

424431441 is a deficient number, since it is larger than the sum of its proper divisors (295280559).

424431441 is a wasteful number, since it uses less digits than its factorization.

424431441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3446 (or 3440 counting only the distinct ones).

The product of its digits is 6144, while the sum is 27.

The square root of 424431441 is about 20601.7339318806. The cubic root of 424431441 is about 751.5118782510.

Adding to 424431441 its reverse (144134424), we get a palindrome (568565865).

The spelling of 424431441 in words is "four hundred twenty-four million, four hundred thirty-one thousand, four hundred forty-one".

Divisors: 1 3 7 9 21 27 63 189 881 2549 2643 6167 7647 7929 17843 18501 22941 23787 53529 55503 68823 160587 166509 481761 2245669 6737007 15719683 20211021 47159049 60633063 141477147 424431441