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21200311330 = 2511192730103
BaseRepresentation
bin10011101111101000…
…110001010000100010
32000201111010101211221
4103233220301100202
5321404234430310
613423404125254
71350235446562
oct235750612042
960644111757
1021200311330
118a9a028760
124137b3682a
131ccb27aa23
141051896da2
15841318ada
hex4efa31422

21200311330 has 16 divisors (see below), whose sum is σ = 41629702464. Its totient is φ = 7709204080.

The previous prime is 21200311303. The next prime is 21200311331. The reversal of 21200311330 is 3311300212.

It is a super-3 number, since 3×212003113303 (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (21200311331) 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, 96364942 + ... + 96365161.

It is an arithmetic number, because the mean of its divisors is an integer number (2601856404).

Almost surely, 221200311330 is an apocalyptic number.

21200311330 is a deficient number, since it is larger than the sum of its proper divisors (20429391134).

21200311330 is a wasteful number, since it uses less digits than its factorization.

21200311330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192730121.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 21200311330 its reverse (3311300212), we get a palindrome (24511611542).

The spelling of 21200311330 in words is "twenty-one billion, two hundred million, three hundred eleven thousand, three hundred thirty".

Divisors: 1 2 5 10 11 22 55 110 192730103 385460206 963650515 1927301030 2120031133 4240062266 10600155665 21200311330