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11210301220 = 2253118081131
BaseRepresentation
bin10100111000010111…
…11001111100100100
31001221021011022021111
422130023321330210
5140424314114340
65052215354404
7544541662636
oct123413717444
931837138244
1011210301220
114832a17258
12220a382a04
13109867a641
14784bb4a56
15459280aea
hex29c2f9f24

11210301220 has 24 divisors (see below), whose sum is σ = 24301041408. Its totient is φ = 4339471200.

The previous prime is 11210301187. The next prime is 11210301227. The reversal of 11210301220 is 2210301211.

It is a self number, because there is not a number n which added to its sum of digits gives 11210301220.

It is not an unprimeable number, because it can be changed into a prime (11210301227) 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, 9039946 + ... + 9041185.

It is an arithmetic number, because the mean of its divisors is an integer number (1012543392).

Almost surely, 211210301220 is an apocalyptic number.

11210301220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11210301220 is an abundant number, since it is smaller than the sum of its proper divisors (13090740188).

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

11210301220 is a wasteful number, since it uses less digits than its factorization.

11210301220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18081171 (or 18081169 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 11210301220 its reverse (2210301211), we get a palindrome (13420602431).

Subtracting from 11210301220 its reverse (2210301211), we obtain a palindrome (9000000009).

The spelling of 11210301220 in words is "eleven billion, two hundred ten million, three hundred one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 31 62 124 155 310 620 18081131 36162262 72324524 90405655 180811310 361622620 560515061 1121030122 2242060244 2802575305 5605150610 11210301220