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1431442430 = 251141503631
BaseRepresentation
bin101010101010010…
…0001001111111110
310200202111210212022
41111110201033332
510412422124210
6354012440142
750321026355
oct12524411776
93622453768
101431442430
11675014980
1233b479052
1319a73a172
14d817899c
1585a06155
hex555213fe

1431442430 has 64 divisors (see below), whose sum is σ = 2889686016. Its totient is φ = 506016000.

The previous prime is 1431442427. The next prime is 1431442459. The reversal of 1431442430 is 342441341.

It is a self number, because there is not a number n which added to its sum of digits gives 1431442430.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2268215 + ... + 2268845.

It is an arithmetic number, because the mean of its divisors is an integer number (45151344).

Almost surely, 21431442430 is an apocalyptic number.

1431442430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1431442430 is an abundant number, since it is smaller than the sum of its proper divisors (1458243586).

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

1431442430 is a wasteful number, since it uses less digits than its factorization.

1431442430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1193.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 1431442430 is about 37834.4080170418. The cubic root of 1431442430 is about 1127.0018494154.

Adding to 1431442430 its reverse (342441341), we get a palindrome (1773883771).

The spelling of 1431442430 in words is "one billion, four hundred thirty-one million, four hundred forty-two thousand, four hundred thirty".

Divisors: 1 2 5 10 11 22 41 55 82 110 205 410 451 503 631 902 1006 1262 2255 2515 3155 4510 5030 5533 6310 6941 11066 13882 20623 25871 27665 34705 41246 51742 55330 69410 103115 129355 206230 226853 258710 284581 317393 453706 569162 634786 1134265 1422905 1586965 2268530 2845810 3173930 3491323 6982646 13013113 17456615 26026226 34913230 65065565 130131130 143144243 286288486 715721215 1431442430