Search a number
-
+
2142212141 = 43534612039
BaseRepresentation
bin111111110101111…
…1001000000101101
312112021221122121102
41333223321000231
513341401242031
6552323012445
7104041334306
oct17753710055
95467848542
102142212141
119aa24a763
124b950a125
13281a7a564
141647177ad
15c81047cb
hex7faf902d

2142212141 has 16 divisors (see below), whose sum is σ = 2239332480. Its totient is φ = 2047456320.

The previous prime is 2142212131. The next prime is 2142212147. The reversal of 2142212141 is 1412122412.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2142212141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142212147) 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 15 ways as a sum of consecutive naturals, for example, 1049600 + ... + 1051638.

It is an arithmetic number, because the mean of its divisors is an integer number (139958280).

Almost surely, 22142212141 is an apocalyptic number.

It is an amenable number.

2142212141 is a deficient number, since it is larger than the sum of its proper divisors (97120339).

2142212141 is a wasteful number, since it uses less digits than its factorization.

2142212141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2596.

The product of its digits is 256, while the sum is 20.

The square root of 2142212141 is about 46284.0376479840. The cubic root of 2142212141 is about 1289.1026230933.

Adding to 2142212141 its reverse (1412122412), we get a palindrome (3554334553).

The spelling of 2142212141 in words is "two billion, one hundred forty-two million, two hundred twelve thousand, one hundred forty-one".

Divisors: 1 43 53 461 2039 2279 19823 24433 87677 108067 939979 1050619 4646881 40419097 49818887 2142212141