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2542393212 = 223211866101
BaseRepresentation
bin1001011110001001…
…1101011101111100
320120011221221211120
42113202131131330
520201323040322
61100140150540
7120000662052
oct22742353574
96504857746
102542393212
111095129717
125ab538450
133169533a8
141a19281d2
15ed301a5c
hex9789d77c

2542393212 has 12 divisors (see below), whose sum is σ = 5932250856. Its totient is φ = 847464400.

The previous prime is 2542393201. The next prime is 2542393219. The reversal of 2542393212 is 2123932452.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2542393219) 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 3 ways as a sum of consecutive naturals, for example, 105933039 + ... + 105933062.

It is an arithmetic number, because the mean of its divisors is an integer number (494354238).

Almost surely, 22542393212 is an apocalyptic number.

It is an amenable number.

2542393212 is an abundant number, since it is smaller than the sum of its proper divisors (3389857644).

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

2542393212 is a wasteful number, since it uses less digits than its factorization.

2542393212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211866108 (or 211866106 counting only the distinct ones).

The product of its digits is 25920, while the sum is 33.

The square root of 2542393212 is about 50422.1500136597. The cubic root of 2542393212 is about 1364.8373749286.

The spelling of 2542393212 in words is "two billion, five hundred forty-two million, three hundred ninety-three thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 211866101 423732202 635598303 847464404 1271196606 2542393212