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2111112468 = 2232411430293
BaseRepresentation
bin111110111010101…
…0000010100010100
312110010102121212200
41331311100110110
513310421044333
6545252244500
7103213105563
oct17565202424
95403377780
102111112468
11993739053
124ab010730
132784abb9a
1416053dbda
15c550ec13
hex7dd50514

2111112468 has 36 divisors (see below), whose sum is σ = 5466583668. Its totient is φ = 686540160.

The previous prime is 2111112463. The next prime is 2111112503. The reversal of 2111112468 is 8642111112.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 307581444 + 1803531024 = 17538^2 + 42468^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111112463) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 713671 + ... + 716622.

Almost surely, 22111112468 is an apocalyptic number.

It is an amenable number.

2111112468 is an abundant number, since it is smaller than the sum of its proper divisors (3355471200).

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

2111112468 is a wasteful number, since it uses less digits than its factorization.

2111112468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1430344 (or 1430339 counting only the distinct ones).

The product of its digits is 768, while the sum is 27.

The square root of 2111112468 is about 45946.8439394916. The cubic root of 2111112468 is about 1282.8339852670.

The spelling of 2111112468 in words is "two billion, one hundred eleven million, one hundred twelve thousand, four hundred sixty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 41 82 123 164 246 369 492 738 1476 1430293 2860586 4290879 5721172 8581758 12872637 17163516 25745274 51490548 58642013 117284026 175926039 234568052 351852078 527778117 703704156 1055556234 2111112468