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20010012211 = 73538097941
BaseRepresentation
bin10010101000101100…
…001000111000110011
31220122112100221102101
4102220230020320303
5311440030342321
613105324001231
71305603204010
oct225054107063
956575327371
1020010012211
118539148382
123a65390217
131b6b7a1c17
14d7b770707
157c1a97791
hex4a8b08e33

20010012211 has 8 divisors (see below), whose sum is σ = 22933371744. Its totient is φ = 17102849280.

The previous prime is 20010012173. The next prime is 20010012221. The reversal of 20010012211 is 11221001002.

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 20010012211 - 225 = 19976457779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20010012221) 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, 4046500 + ... + 4051441.

It is an arithmetic number, because the mean of its divisors is an integer number (2866671468).

Almost surely, 220010012211 is an apocalyptic number.

20010012211 is a deficient number, since it is larger than the sum of its proper divisors (2923359533).

20010012211 is an equidigital number, since it uses as much as digits as its factorization.

20010012211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8098301.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 20010012211 its reverse (11221001002), we get a palindrome (31231013213).

The spelling of 20010012211 in words is "twenty billion, ten million, twelve thousand, two hundred eleven".

Divisors: 1 7 353 2471 8097941 56685587 2858573173 20010012211