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1431224142 = 23238537357
BaseRepresentation
bin101010101001110…
…1011111101001110
310200202002201102120
41111103223331032
510412343133032
6354004033410
750316130065
oct12523537516
93622081376
101431224142
11674985977
1233b392866
1319a6919ba
14d811d1dc
15859b162c
hex554ebf4e

1431224142 has 8 divisors (see below), whose sum is σ = 2862448296. Its totient is φ = 477074712.

The previous prime is 1431224131. The next prime is 1431224147. The reversal of 1431224142 is 2414221341.

It is a sphenic number, since it is the product of 3 distinct primes.

1431224142 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1431224147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119268673 + ... + 119268684.

It is an arithmetic number, because the mean of its divisors is an integer number (357806037).

Almost surely, 21431224142 is an apocalyptic number.

1431224142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1431224142 is a wasteful number, since it uses less digits than its factorization.

1431224142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238537362.

The product of its digits is 1536, while the sum is 24.

The square root of 1431224142 is about 37831.5231255629. The cubic root of 1431224142 is about 1126.9445590718.

Adding to 1431224142 its reverse (2414221341), we get a palindrome (3845445483).

The spelling of 1431224142 in words is "one billion, four hundred thirty-one million, two hundred twenty-four thousand, one hundred forty-two".

Divisors: 1 2 3 6 238537357 477074714 715612071 1431224142