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2013235730 = 251118302143
BaseRepresentation
bin111011111111111…
…1000101000010010
312012022020222020022
41313333320220102
513110342020410
6531434343442
7100614135632
oct16777705022
95168228208
102013235730
11943467890
1248228ab82
1326112c95c
141515426c2
15bbb29455
hex77ff8a12

2013235730 has 16 divisors (see below), whose sum is σ = 3953263104. Its totient is φ = 732085680.

The previous prime is 2013235729. The next prime is 2013235739. The reversal of 2013235730 is 375323102.

It is a self number, because there is not a number n which added to its sum of digits gives 2013235730.

It is not an unprimeable number, because it can be changed into a prime (2013235739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9150962 + ... + 9151181.

It is an arithmetic number, because the mean of its divisors is an integer number (247078944).

Almost surely, 22013235730 is an apocalyptic number.

2013235730 is a deficient number, since it is larger than the sum of its proper divisors (1940027374).

2013235730 is a wasteful number, since it uses less digits than its factorization.

2013235730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18302161.

The product of its (nonzero) digits is 3780, while the sum is 26.

The square root of 2013235730 is about 44869.0954889889. The cubic root of 2013235730 is about 1262.6942704020.

Adding to 2013235730 its reverse (375323102), we get a palindrome (2388558832).

The spelling of 2013235730 in words is "two billion, thirteen million, two hundred thirty-five thousand, seven hundred thirty".

Divisors: 1 2 5 10 11 22 55 110 18302143 36604286 91510715 183021430 201323573 402647146 1006617865 2013235730