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2012440090 = 251369114699
BaseRepresentation
bin111011111110011…
…0110011000011010
312012020202112211011
41313330312120122
513110141040330
6531405324134
7100604313163
oct16774663032
95166675734
102012440090
11942a74031
12481b6664a
13260c1176b
141513b676a
15bba1d82a
hex77f3661a

2012440090 has 16 divisors (see below), whose sum is σ = 3622903200. Its totient is φ = 804862480.

The previous prime is 2012440063. The next prime is 2012440091. The reversal of 2012440090 is 900442102.

It is not an unprimeable number, because it can be changed into a prime (2012440091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129561 + ... + 144259.

It is an arithmetic number, because the mean of its divisors is an integer number (226431450).

Almost surely, 22012440090 is an apocalyptic number.

2012440090 is a deficient number, since it is larger than the sum of its proper divisors (1610463110).

2012440090 is a wasteful number, since it uses less digits than its factorization.

2012440090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28397.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 2012440090 is about 44860.2283765921. The cubic root of 2012440090 is about 1262.5279076274.

Adding to 2012440090 its reverse (900442102), we get a palindrome (2912882192).

The spelling of 2012440090 in words is "two billion, twelve million, four hundred forty thousand, ninety".

Divisors: 1 2 5 10 13691 14699 27382 29398 68455 73495 136910 146990 201244009 402488018 1006220045 2012440090