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11300031020 = 225565001551
BaseRepresentation
bin10101000011000100…
…01100101000101100
31002011112000001102102
422201202030220230
5141120301443040
65105142514232
7550011451565
oct124142145054
932145001372
1011300031020
114879633613
122234435978
1310b11365b5
14792a9116c
154620a7515
hex2a188ca2c

11300031020 has 12 divisors (see below), whose sum is σ = 23730065184. Its totient is φ = 4520012400.

The previous prime is 11300031013. The next prime is 11300031023. The reversal of 11300031020 is 2013000311.

It is a junction number, because it is equal to n+sod(n) for n = 11300030992 and 11300031010.

It is not an unprimeable number, because it can be changed into a prime (11300031023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 282500756 + ... + 282500795.

It is an arithmetic number, because the mean of its divisors is an integer number (1977505432).

Almost surely, 211300031020 is an apocalyptic number.

11300031020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11300031020 is an abundant number, since it is smaller than the sum of its proper divisors (12430034164).

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

11300031020 is a wasteful number, since it uses less digits than its factorization.

11300031020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565001560 (or 565001558 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 11.

Adding to 11300031020 its reverse (2013000311), we get a palindrome (13313031331).

The spelling of 11300031020 in words is "eleven billion, three hundred million, thirty-one thousand, twenty".

Divisors: 1 2 4 5 10 20 565001551 1130003102 2260006204 2825007755 5650015510 11300031020