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32005300105 = 56401060021
BaseRepresentation
bin11101110011101010…
…100001111110001001
310001121111121200222101
4131303222201332021
51011021324100410
622411504353401
72212056363562
oct356352417611
9101544550871
1032005300105
1112634180749
126252615861
1330309769cc
1417988c3169
15c74bd6d3a
hex773aa1f89

32005300105 has 4 divisors (see below), whose sum is σ = 38406360132. Its totient is φ = 25604240080.

The previous prime is 32005300091. The next prime is 32005300109. The reversal of 32005300105 is 50100350023.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50100350023 = 61781199919.

It can be written as a sum of positive squares in 2 ways, for example, as 15404781456 + 16600518649 = 124116^2 + 128843^2 .

It is not a de Polignac number, because 32005300105 - 211 = 32005298057 is a prime.

It is a super-2 number, since 2×320053001052 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32005300109) 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, 3200530006 + ... + 3200530015.

It is an arithmetic number, because the mean of its divisors is an integer number (9601590033).

Almost surely, 232005300105 is an apocalyptic number.

It is an amenable number.

32005300105 is a deficient number, since it is larger than the sum of its proper divisors (6401060027).

32005300105 is an equidigital number, since it uses as much as digits as its factorization.

32005300105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6401060026.

The product of its (nonzero) digits is 450, while the sum is 19.

Adding to 32005300105 its reverse (50100350023), we get a palindrome (82105650128).

The spelling of 32005300105 in words is "thirty-two billion, five million, three hundred thousand, one hundred five".

Divisors: 1 5 6401060021 32005300105