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32143645201 = 129412483861
BaseRepresentation
bin11101111011111010…
…010001101000010001
310001222010221100202211
4131323322101220101
51011312233121301
622433325512121
72215356322213
oct357372215021
9101863840684
1032143645201
11126a5282438
126290a12641
133053524a05
1417ad0165b3
15c81e13051
hex77be91a11

32143645201 has 4 divisors (see below), whose sum is σ = 32146142004. Its totient is φ = 32141148400.

The previous prime is 32143645199. The next prime is 32143645207. The reversal of 32143645201 is 10254634123.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10254634123 = 74313801661.

It can be written as a sum of positive squares in 2 ways, for example, as 18366754576 + 13776890625 = 135524^2 + 117375^2 .

It is a cyclic number.

It is not a de Polignac number, because 32143645201 - 21 = 32143645199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32143645207) 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, 1228990 + ... + 1254871.

It is an arithmetic number, because the mean of its divisors is an integer number (8036535501).

Almost surely, 232143645201 is an apocalyptic number.

It is an amenable number.

32143645201 is a deficient number, since it is larger than the sum of its proper divisors (2496803).

32143645201 is a wasteful number, since it uses less digits than its factorization.

32143645201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2496802.

The product of its (nonzero) digits is 17280, while the sum is 31.

The spelling of 32143645201 in words is "thirty-two billion, one hundred forty-three million, six hundred forty-five thousand, two hundred one".

Divisors: 1 12941 2483861 32143645201