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1431342542 = 27195380987
BaseRepresentation
bin101010101010000…
…1000110111001110
310200202022201211202
41111110020313032
510412410430132
6354010345502
750320132220
oct12524106716
93622281752
101431342542
11674a56923
1233b42b292
1319a703866
14d8150410
15859d6762
hex55508dce

1431342542 has 16 divisors (see below), whose sum is σ = 2582874240. Its totient is φ = 581146488.

The previous prime is 1431342541. The next prime is 1431342569. The reversal of 1431342542 is 2452431341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1431342541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2690228 + ... + 2690759.

It is an arithmetic number, because the mean of its divisors is an integer number (161429640).

Almost surely, 21431342542 is an apocalyptic number.

1431342542 is a deficient number, since it is larger than the sum of its proper divisors (1151531698).

1431342542 is a wasteful number, since it uses less digits than its factorization.

1431342542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5381015.

The product of its digits is 11520, while the sum is 29.

The square root of 1431342542 is about 37833.0879257826. The cubic root of 1431342542 is about 1126.9756342316.

Adding to 1431342542 its reverse (2452431341), we get a palindrome (3883773883).

The spelling of 1431342542 in words is "one billion, four hundred thirty-one million, three hundred forty-two thousand, five hundred forty-two".

Divisors: 1 2 7 14 19 38 133 266 5380987 10761974 37666909 75333818 102238753 204477506 715671271 1431342542