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20101110200 = 2352281357671
BaseRepresentation
bin10010101110000111…
…101001100110111000
31220212212210012100222
4102232013221212320
5312131341011300
613122340315212
71311060421553
oct225607514670
956785705328
1020101110200
118585609676
123a8b9a2b08
131b84619862
14d898c569a
157c9a8e785
hex4ae1e99b8

20101110200 has 48 divisors (see below), whose sum is σ = 46901529360. Its totient is φ = 8011808000.

The previous prime is 20101110191. The next prime is 20101110209. The reversal of 20101110200 is 201110102.

It is an interprime number because it is at equal distance from previous prime (20101110191) and next prime (20101110209).

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20101110209) 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, 122636 + ... + 235035.

It is an arithmetic number, because the mean of its divisors is an integer number (977115195).

Almost surely, 220101110200 is an apocalyptic number.

20101110200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20101110200 is an abundant number, since it is smaller than the sum of its proper divisors (26800419160).

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

20101110200 is a wasteful number, since it uses less digits than its factorization.

20101110200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357968 (or 357959 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 20101110200 its reverse (201110102), we get a palindrome (20302220302).

The spelling of 20101110200 in words is "twenty billion, one hundred one million, one hundred ten thousand, two hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 281 562 1124 1405 2248 2810 5620 7025 11240 14050 28100 56200 357671 715342 1430684 1788355 2861368 3576710 7153420 8941775 14306840 17883550 35767100 71534200 100505551 201011102 402022204 502527755 804044408 1005055510 2010111020 2512638775 4020222040 5025277550 10050555100 20101110200