Search a number
-
+
20431175001 = 348891393003
BaseRepresentation
bin10011000001110010…
…101111110101011001
31221201212212020011020
4103001302233311121
5313320340100001
613215210553053
71322206056606
oct230162576531
957655766136
1020431175001
1187349581a6
123b62438789
131c07b12c83
14dbb6836ad
157e8a3b736
hex4c1cafd59

20431175001 has 8 divisors (see below), whose sum is σ = 27247158240. Its totient is φ = 13617987552.

The previous prime is 20431174987. The next prime is 20431175021. The reversal of 20431175001 is 10057113402.

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

It is not a de Polignac number, because 20431175001 - 214 = 20431158617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20431175021) 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 7 ways as a sum of consecutive naturals, for example, 681835 + ... + 711168.

It is an arithmetic number, because the mean of its divisors is an integer number (3405894780).

Almost surely, 220431175001 is an apocalyptic number.

It is an amenable number.

20431175001 is a deficient number, since it is larger than the sum of its proper divisors (6815983239).

20431175001 is a wasteful number, since it uses less digits than its factorization.

20431175001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1397895.

The product of its (nonzero) digits is 840, while the sum is 24.

Adding to 20431175001 its reverse (10057113402), we get a palindrome (30488288403).

The spelling of 20431175001 in words is "twenty billion, four hundred thirty-one million, one hundred seventy-five thousand, one".

Divisors: 1 3 4889 14667 1393003 4179009 6810391667 20431175001