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20311300110 = 2354911378907
BaseRepresentation
bin10010111010101001…
…011101100000001110
31221102112021221201110
4102322221131200032
5313044143100420
613155245352450
71316222126253
oct227251354016
957375257643
1020311300110
118683221442
123b2a268726
131bb9030c9a
14da979b42a
157dd25cee0
hex4baa5d80e

20311300110 has 32 divisors (see below), whose sum is σ = 48846436992. Its totient is φ = 5405311520.

The previous prime is 20311300063. The next prime is 20311300117. The reversal of 20311300110 is 1100311302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20311300117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 674724 + ... + 704183.

It is an arithmetic number, because the mean of its divisors is an integer number (1526451156).

Almost surely, 220311300110 is an apocalyptic number.

20311300110 is an abundant number, since it is smaller than the sum of its proper divisors (28535136882).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20311300110 is a wasteful number, since it uses less digits than its factorization.

20311300110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1379408.

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 20311300110 its reverse (1100311302), we get a palindrome (21411611412).

The spelling of 20311300110 in words is "twenty billion, three hundred eleven million, three hundred thousand, one hundred ten".

Divisors: 1 2 3 5 6 10 15 30 491 982 1473 2455 2946 4910 7365 14730 1378907 2757814 4136721 6894535 8273442 13789070 20683605 41367210 677043337 1354086674 2031130011 3385216685 4062260022 6770433370 10155650055 20311300110