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1431204131 = 74323320407
BaseRepresentation
bin101010101001110…
…0111000100100011
310200202001200222102
41111103213010203
510412342013011
6354003401015
750316014540
oct12523470443
93622050872
101431204131
11674971935
1233b38316b
1319a685866
14d8115bc7
15859aa73b
hex554e7123

1431204131 has 16 divisors (see below), whose sum is σ = 1680966144. Its totient is φ = 1193016384.

The previous prime is 1431204121. The next prime is 1431204133. The reversal of 1431204131 is 1314021341.

It is not a de Polignac number, because 1431204131 - 210 = 1431203107 is a prime.

It is a super-2 number, since 2×14312041312 = 4096690529182930322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1431204133) 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, 59930 + ... + 80336.

It is an arithmetic number, because the mean of its divisors is an integer number (105060384).

Almost surely, 21431204131 is an apocalyptic number.

1431204131 is a deficient number, since it is larger than the sum of its proper divisors (249762013).

1431204131 is a wasteful number, since it uses less digits than its factorization.

1431204131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20690.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1431204131 is about 37831.2586494290. The cubic root of 1431204131 is about 1126.9393068331.

Adding to 1431204131 its reverse (1314021341), we get a palindrome (2745225472).

The spelling of 1431204131 in words is "one billion, four hundred thirty-one million, two hundred four thousand, one hundred thirty-one".

Divisors: 1 7 43 233 301 1631 10019 20407 70133 142849 877501 4754831 6142507 33283817 204457733 1431204131