Search a number
-
+
2013000312 = 233389215617
BaseRepresentation
bin111011111111011…
…1111001001111000
312012021211000022010
41313332333021320
513110312002222
6531425325520
7100612135401
oct16776771170
95167730263
102013000312
11943316a24
124821968a0
1326107975b
141514c09a8
15bbace80c
hex77fbf278

2013000312 has 32 divisors (see below), whose sum is σ = 5045461200. Its totient is φ = 669272064.

The previous prime is 2013000299. The next prime is 2013000313. The reversal of 2013000312 is 2130003102.

It is a happy number.

It is a super-2 number, since 2×20130003122 = 8104340512224194688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2013000313) 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, 98473 + ... + 117144.

Almost surely, 22013000312 is an apocalyptic number.

It is an amenable number.

2013000312 is an abundant number, since it is smaller than the sum of its proper divisors (3032460888).

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

2013000312 is a wasteful number, since it uses less digits than its factorization.

2013000312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216015 (or 216011 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 2013000312 is about 44866.4720253331. The cubic root of 2013000312 is about 1262.6450507067.

Adding to 2013000312 its reverse (2130003102), we get a palindrome (4143003414).

The spelling of 2013000312 in words is "two billion, thirteen million, three hundred twelve", and thus it is an aban number.

Divisors: 1 2 3 4 6 8 12 24 389 778 1167 1556 2334 3112 4668 9336 215617 431234 646851 862468 1293702 1724936 2587404 5174808 83875013 167750026 251625039 335500052 503250078 671000104 1006500156 2013000312