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2013204323 = 13154861871
BaseRepresentation
bin111011111111111…
…0000111101100011
312012022012101011002
41313333300331203
513110340014243
6531433542215
7100613645234
oct16777607543
95168171132
102013204323
11943446229
1248227496b
1326111b580
1415153508b
15bbb1eeb8
hex77ff0f63

2013204323 has 4 divisors (see below), whose sum is σ = 2168066208. Its totient is φ = 1858342440.

The previous prime is 2013204307. The next prime is 2013204341. The reversal of 2013204323 is 3234023102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2013204323 - 24 = 2013204307 is a prime.

It is a super-2 number, since 2×20132043232 = 8105983292291776658, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2013204295 and 2013204304.

It is not an unprimeable number, because it can be changed into a prime (2013204343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77430923 + ... + 77430948.

It is an arithmetic number, because the mean of its divisors is an integer number (542016552).

Almost surely, 22013204323 is an apocalyptic number.

2013204323 is a deficient number, since it is larger than the sum of its proper divisors (154861885).

2013204323 is a wasteful number, since it uses less digits than its factorization.

2013204323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154861884.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 2013204323 is about 44868.7455028553. The cubic root of 2013204323 is about 1262.6877042484.

Adding to 2013204323 its reverse (3234023102), we get a palindrome (5247227425).

The spelling of 2013204323 in words is "two billion, thirteen million, two hundred four thousand, three hundred twenty-three".

Divisors: 1 13 154861871 2013204323