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2131422112 = 25317512861
BaseRepresentation
bin111111100001010…
…1110101110100000
312111112122110110201
41333002232232200
513331121001422
6551255434544
7103550534431
oct17702565640
95445573421
102131422112
119a414aa86
124b5985a54
1327c770221
14163109488
15c71c2727
hex7f0aeba0

2131422112 has 48 divisors (see below), whose sum is σ = 4338883584. Its totient is φ = 1029600000.

The previous prime is 2131422103. The next prime is 2131422127. The reversal of 2131422112 is 2112241312.

It is a self number, because there is not a number n which added to its sum of digits gives 2131422112.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 743562 + ... + 746422.

It is an arithmetic number, because the mean of its divisors is an integer number (90393408).

Almost surely, 22131422112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2131422112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2169441792).

2131422112 is an abundant number, since it is smaller than the sum of its proper divisors (2207461472).

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

2131422112 is a wasteful number, since it uses less digits than its factorization.

2131422112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3653 (or 3645 counting only the distinct ones).

The product of its digits is 192, while the sum is 19.

The square root of 2131422112 is about 46167.3273213861. The cubic root of 2131422112 is about 1286.9346346343.

Adding to 2131422112 its reverse (2112241312), we get a palindrome (4243663424).

The spelling of 2131422112 in words is "two billion, one hundred thirty-one million, four hundred twenty-two thousand, one hundred twelve".

Divisors: 1 2 4 8 16 31 32 62 124 248 496 751 992 1502 2861 3004 5722 6008 11444 12016 22888 23281 24032 45776 46562 88691 91552 93124 177382 186248 354764 372496 709528 744992 1419056 2148611 2838112 4297222 8594444 17188888 34377776 66606941 68755552 133213882 266427764 532855528 1065711056 2131422112