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20231332001 = 17297721697
BaseRepresentation
bin10010110101111000…
…011010000010100001
31221012221211011002122
4102311320122002201
5312413210111001
613143311354025
71314231325136
oct226570320241
957187734078
1020231332001
1186420721a1
123b07522915
131ba55b228a
14d9cd0258d
157d6213b1b
hex4b5e1a0a1

20231332001 has 12 divisors (see below), whose sum is σ = 21713006028. Its totient is φ = 18844925952.

The previous prime is 20231331977. The next prime is 20231332057. The reversal of 20231332001 is 10023313202.

It can be written as a sum of positive squares in 6 ways, for example, as 4379262976 + 15852069025 = 66176^2 + 125905^2 .

It is not a de Polignac number, because 20231332001 - 226 = 20164223137 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20231332061) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 332816 + ... + 388881.

It is an arithmetic number, because the mean of its divisors is an integer number (1809417169).

Almost surely, 220231332001 is an apocalyptic number.

It is an amenable number.

20231332001 is a deficient number, since it is larger than the sum of its proper divisors (1481674027).

20231332001 is an equidigital number, since it uses as much as digits as its factorization.

20231332001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721828 (or 721811 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 20231332001 its reverse (10023313202), we get a palindrome (30254645203).

The spelling of 20231332001 in words is "twenty billion, two hundred thirty-one million, three hundred thirty-two thousand, one".

Divisors: 1 17 97 289 1649 28033 721697 12268849 70004609 208570433 1190078353 20231332001