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2142222042 = 23357037007
BaseRepresentation
bin111111110101111…
…1011011011011010
312112021222011012010
41333223323123122
513341402101132
6552323130350
7104041405212
oct17753733332
95467864163
102142222042
119aa257144
124b95139b6
13281a81c0c
1416471b242
15c81076cc
hex7fafb6da

2142222042 has 8 divisors (see below), whose sum is σ = 4284444096. Its totient is φ = 714074012.

The previous prime is 2142222023. The next prime is 2142222067. The reversal of 2142222042 is 2402222412.

It is a sphenic number, since it is the product of 3 distinct primes.

2142222042 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 178518498 + ... + 178518509.

It is an arithmetic number, because the mean of its divisors is an integer number (535555512).

Almost surely, 22142222042 is an apocalyptic number.

2142222042 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2142222042 is a wasteful number, since it uses less digits than its factorization.

2142222042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357037012.

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 2142222042 is about 46284.1446069818. The cubic root of 2142222042 is about 1289.1046091066.

Adding to 2142222042 its reverse (2402222412), we get a palindrome (4544444454).

The spelling of 2142222042 in words is "two billion, one hundred forty-two million, two hundred twenty-two thousand, forty-two".

Divisors: 1 2 3 6 357037007 714074014 1071111021 2142222042