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20331041001 = 343353446473
BaseRepresentation
bin10010111011110100…
…110001000011101001
31221110220102220010120
4102323310301003221
5313114221303001
613201232433453
71316551666005
oct227364610351
957426386116
1020331041001
118693385027
123b349a8889
131bc015349b
14dac259705
157ded5c236
hex4bbd310e9

20331041001 has 16 divisors (see below), whose sum is σ = 27817116096. Its totient is φ = 13201284096.

The previous prime is 20331040993. The next prime is 20331041011. The reversal of 20331041001 is 10014013302.

It is not a de Polignac number, because 20331041001 - 23 = 20331040993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20331041011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 177700 + ... + 268773.

It is an arithmetic number, because the mean of its divisors is an integer number (1738569756).

Almost surely, 220331041001 is an apocalyptic number.

It is an amenable number.

20331041001 is a deficient number, since it is larger than the sum of its proper divisors (7486075095).

20331041001 is a wasteful number, since it uses less digits than its factorization.

20331041001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446872.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20331041001 its reverse (10014013302), we get a palindrome (30345054303).

The spelling of 20331041001 in words is "twenty billion, three hundred thirty-one million, forty-one thousand, one".

Divisors: 1 3 43 129 353 1059 15179 45537 446473 1339419 19198339 57595017 157604969 472814907 6777013667 20331041001