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2013144243 = 311296731397
BaseRepresentation
bin111011111111110…
…0010010010110011
312012022002022201220
41313333202102303
513110331103433
6531432400123
7100613305125
oct16777422263
95168068656
102013144243
11943405080
12482246043
132610ca116
1415151b215
15bbb0c2b3
hex77fe24b3

2013144243 has 32 divisors (see below), whose sum is σ = 3074492160. Its totient is φ = 1160396160.

The previous prime is 2013144241. The next prime is 2013144257. The reversal of 2013144243 is 3424413102.

It is not a de Polignac number, because 2013144243 - 21 = 2013144241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2013144241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48421 + ... + 79817.

It is an arithmetic number, because the mean of its divisors is an integer number (96077880).

Almost surely, 22013144243 is an apocalyptic number.

2013144243 is a deficient number, since it is larger than the sum of its proper divisors (1061347917).

2013144243 is a wasteful number, since it uses less digits than its factorization.

2013144243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31507.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 2013144243 is about 44868.0759895051. The cubic root of 2013144243 is about 1262.6751433389.

Adding to 2013144243 its reverse (3424413102), we get a palindrome (5437557345).

The spelling of 2013144243 in words is "two billion, thirteen million, one hundred forty-four thousand, two hundred forty-three".

Divisors: 1 3 11 29 33 67 87 201 319 737 957 1943 2211 5829 21373 31397 64119 94191 345367 910513 1036101 2103599 2731539 6310797 10015643 23139589 30046929 61004371 69418767 183013113 671048081 2013144243