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20321431301 = 37599308947
BaseRepresentation
bin10010111011010000…
…000110111100000101
31221110020100200002202
4102323100012330011
5313104241300201
613200250444245
71316404213253
oct227320067405
957406320082
1020321431301
118688a11126
123b31733685
131bbb16a482
14daac775d3
157de0aec6b
hex4bb406f05

20321431301 has 8 divisors (see below), whose sum is σ = 21224401440. Its totient is φ = 19437079248.

The previous prime is 20321431289. The next prime is 20321431309. The reversal of 20321431301 is 10313412302.

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

It is a cyclic number.

It is not a de Polignac number, because 20321431301 - 210 = 20321430277 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 (20321431309) 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, 4652291 + ... + 4656656.

It is an arithmetic number, because the mean of its divisors is an integer number (2653050180).

Almost surely, 220321431301 is an apocalyptic number.

It is an amenable number.

20321431301 is a deficient number, since it is larger than the sum of its proper divisors (902970139).

20321431301 is an equidigital number, since it uses as much as digits as its factorization.

20321431301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9309043.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 20321431301 its reverse (10313412302), we get a palindrome (30634843603).

The spelling of 20321431301 in words is "twenty billion, three hundred twenty-one million, four hundred thirty-one thousand, three hundred one".

Divisors: 1 37 59 2183 9308947 344431039 549227873 20321431301