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32020013005 = 56404002601
BaseRepresentation
bin11101110100100010…
…101001111111001101
310001122112022012021121
4131310202221333031
51011034110404010
622413152000541
72212325422411
oct356442517715
9101575265247
1032020013005
111264150a772
126257530151
133033a28776
14179a832d41
15c761413da
hex7748a9fcd

32020013005 has 4 divisors (see below), whose sum is σ = 38424015612. Its totient is φ = 25616010400.

The previous prime is 32020012967. The next prime is 32020013033. The reversal of 32020013005 is 50031002023.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50031002023 = 172943000119.

It can be written as a sum of positive squares in 2 ways, for example, as 19929251241 + 12090761764 = 141171^2 + 109958^2 .

It is a de Polignac number, because none of the positive numbers 2k-32020013005 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 32020013005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3202001296 + ... + 3202001305.

It is an arithmetic number, because the mean of its divisors is an integer number (9606003903).

Almost surely, 232020013005 is an apocalyptic number.

It is an amenable number.

32020013005 is a deficient number, since it is larger than the sum of its proper divisors (6404002607).

32020013005 is an equidigital number, since it uses as much as digits as its factorization.

32020013005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6404002606.

The product of its (nonzero) digits is 180, while the sum is 16.

Adding to 32020013005 its reverse (50031002023), we get a palindrome (82051015028).

The spelling of 32020013005 in words is "thirty-two billion, twenty million, thirteen thousand, five".

Divisors: 1 5 6404002601 32020013005