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20113230011 = 719328152981
BaseRepresentation
bin10010101110110101…
…111000100010111011
31220220201120221121212
4102232311320202323
5312142441330021
613123452153335
71311265430360
oct225665704273
956821527555
1020113230011
118591437446
123a93a6884b
131b86ca1244
14d8b35c467
157cab8585b
hex4aed788bb

20113230011 has 16 divisors (see below), whose sum is σ = 23188314048. Its totient is φ = 17089228800.

The previous prime is 20113229999. The next prime is 20113230013. The reversal of 20113230011 is 11003231102.

It is not a de Polignac number, because 20113230011 - 26 = 20113229947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20113230013) 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, 353141 + ... + 406121.

It is an arithmetic number, because the mean of its divisors is an integer number (1449269628).

Almost surely, 220113230011 is an apocalyptic number.

20113230011 is a deficient number, since it is larger than the sum of its proper divisors (3075084037).

20113230011 is a wasteful number, since it uses less digits than its factorization.

20113230011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53462.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 20113230011 its reverse (11003231102), we get a palindrome (31116461113).

The spelling of 20113230011 in words is "twenty billion, one hundred thirteen million, two hundred thirty thousand, eleven".

Divisors: 1 7 193 281 1351 1967 52981 54233 370867 379631 10225333 14887661 71577331 104213627 2873318573 20113230011