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143162364431 = 223641983697
BaseRepresentation
bin1000010101010100100…
…1000101001000001111
3111200112020020122012202
42011111021011020033
54321144031130211
6145433510152115
713225461006452
oct2052511051017
9450466218182
10143162364431
1155795471369
12238b495263b
1310666ab4258
146d0161b499
153acd68853b
hex215524520f

143162364431 has 4 divisors (see below), whose sum is σ = 143804348352. Its totient is φ = 142520380512.

The previous prime is 143162364413. The next prime is 143162364439. The reversal of 143162364431 is 134463261341.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134463261341 = 496727071323.

It is a cyclic number.

It is not a de Polignac number, because 143162364431 - 218 = 143162102287 is a prime.

It is a super-2 number, since 2×1431623644312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143162364439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 320991626 + ... + 320992071.

It is an arithmetic number, because the mean of its divisors is an integer number (35951087088).

Almost surely, 2143162364431 is an apocalyptic number.

143162364431 is a deficient number, since it is larger than the sum of its proper divisors (641983921).

143162364431 is an equidigital number, since it uses as much as digits as its factorization.

143162364431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641983920.

The product of its digits is 124416, while the sum is 38.

The spelling of 143162364431 in words is "one hundred forty-three billion, one hundred sixty-two million, three hundred sixty-four thousand, four hundred thirty-one".

Divisors: 1 223 641983697 143162364431