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2231113112 = 23278889139
BaseRepresentation
bin1000010011111100…
…0001010110011000
312202111020021210222
42010333001112120
514032131104422
61005220255212
7106201101644
oct20477012630
95674207728
102231113112
11a45450338
12523241508
13297306197
14172459c24
15d0d15842
hex84fc1598

2231113112 has 8 divisors (see below), whose sum is σ = 4183337100. Its totient is φ = 1115556552.

The previous prime is 2231113111. The next prime is 2231113151. The reversal of 2231113112 is 2113111322.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×22311131123 (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231113111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 139444562 + ... + 139444577.

Almost surely, 22231113112 is an apocalyptic number.

It is an amenable number.

2231113112 is a deficient number, since it is larger than the sum of its proper divisors (1952223988).

2231113112 is a wasteful number, since it uses less digits than its factorization.

2231113112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278889145 (or 278889141 counting only the distinct ones).

The product of its digits is 72, while the sum is 17.

The square root of 2231113112 is about 47234.6600707574. The cubic root of 2231113112 is about 1306.6938974033.

Adding to 2231113112 its reverse (2113111322), we get a palindrome (4344224434).

The spelling of 2231113112 in words is "two billion, two hundred thirty-one million, one hundred thirteen thousand, one hundred twelve".

Divisors: 1 2 4 8 278889139 557778278 1115556556 2231113112