Search a number
-
+
32032431421 = 281831136587
BaseRepresentation
bin11101110101010010…
…000001110100111101
310001200101200010010221
4131311102001310331
51011100300301141
622414314101341
72212536113614
oct356522016475
9101611603127
1032032431421
1112648521921
12625b71a851
133036486043
14179c34687b
15c77295bd1
hex775481d3d

32032431421 has 4 divisors (see below), whose sum is σ = 32033596192. Its totient is φ = 32031266652.

The previous prime is 32032431419. The next prime is 32032431437. The reversal of 32032431421 is 12413423023.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12413423023 = 79157131937.

It is a cyclic number.

It is not a de Polignac number, because 32032431421 - 21 = 32032431419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32032471421) 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, 540111 + ... + 596476.

It is an arithmetic number, because the mean of its divisors is an integer number (8008399048).

Almost surely, 232032431421 is an apocalyptic number.

It is an amenable number.

32032431421 is a deficient number, since it is larger than the sum of its proper divisors (1164771).

32032431421 is a wasteful number, since it uses less digits than its factorization.

32032431421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1164770.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 32032431421 its reverse (12413423023), we get a palindrome (44445854444).

The spelling of 32032431421 in words is "thirty-two billion, thirty-two million, four hundred thirty-one thousand, four hundred twenty-one".

Divisors: 1 28183 1136587 32032431421