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20434431101 = 77014164343
BaseRepresentation
bin10011000001111111…
…001010110001111101
31221202002222122200112
4103001333022301331
5313322203243401
613215404435405
71322245540610
oct230177126175
957662878615
1020434431101
118736781597
123b63548b65
131c086b3066
14dbbc90177
157e8e813bb
hex4c1fcac7d

20434431101 has 8 divisors (see below), whose sum is σ = 23386955904. Its totient is φ = 17490236400.

The previous prime is 20434431097. The next prime is 20434431109. The reversal of 20434431101 is 10113443402.

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

It is not a de Polignac number, because 20434431101 - 22 = 20434431097 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 (20434431109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2077265 + ... + 2087078.

It is an arithmetic number, because the mean of its divisors is an integer number (2923369488).

Almost surely, 220434431101 is an apocalyptic number.

It is an amenable number.

20434431101 is a deficient number, since it is larger than the sum of its proper divisors (2952524803).

20434431101 is an equidigital number, since it uses as much as digits as its factorization.

20434431101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4165051.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 20434431101 its reverse (10113443402), we get a palindrome (30547874503).

The spelling of 20434431101 in words is "twenty billion, four hundred thirty-four million, four hundred thirty-one thousand, one hundred one".

Divisors: 1 7 701 4907 4164343 29150401 2919204443 20434431101