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2143224430 = 253734331327
BaseRepresentation
bin111111110111111…
…0000001001101110
312112100212002012121
41333233300021232
513342131140210
6552400423154
7104053051504
oct17757601156
95470762177
102143224430
119aa881266
124b9917aba
13282043249
141648dc674
15c82546da
hex7fbf026e

2143224430 has 32 divisors (see below), whose sum is σ = 3880001664. Its totient is φ = 852374016.

The previous prime is 2143224407. The next prime is 2143224431. The reversal of 2143224430 is 344223412.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2143224395 and 2143224404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143224431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1614427 + ... + 1615753.

It is an arithmetic number, because the mean of its divisors is an integer number (121250052).

Almost surely, 22143224430 is an apocalyptic number.

2143224430 is a deficient number, since it is larger than the sum of its proper divisors (1736777234).

2143224430 is a wasteful number, since it uses less digits than its factorization.

2143224430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2140.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 2143224430 is about 46294.9719732068. The cubic root of 2143224430 is about 1289.3056435888.

Adding to 2143224430 its reverse (344223412), we get a palindrome (2487447842).

The spelling of 2143224430 in words is "two billion, one hundred forty-three million, two hundred twenty-four thousand, four hundred thirty".

Divisors: 1 2 5 10 373 433 746 866 1327 1865 2165 2654 3730 4330 6635 13270 161509 323018 494971 574591 807545 989942 1149182 1615090 2474855 2872955 4949710 5745910 214322443 428644886 1071612215 2143224430