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2142339986 = 25631902611
BaseRepresentation
bin111111110110001…
…1000001110010010
312112022012010222102
41333230120032102
513341414334421
6552325440402
7104042406113
oct17754301622
95468163872
102142339986
119aa327816
124b9570102
13281ac37c7
1416474c20a
15c812c60b
hex7fb18392

2142339986 has 8 divisors (see below), whose sum is σ = 3219219504. Its totient is φ = 1069266820.

The previous prime is 2142339943. The next prime is 2142339989. The reversal of 2142339986 is 6899332412.

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

It is a super-2 number, since 2×21423399862 = 9179241231228960392, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2142339986.

It is not an unprimeable number, because it can be changed into a prime (2142339989) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 950180 + ... + 952431.

It is an arithmetic number, because the mean of its divisors is an integer number (402402438).

Almost surely, 22142339986 is an apocalyptic number.

2142339986 is a deficient number, since it is larger than the sum of its proper divisors (1076879518).

2142339986 is a wasteful number, since it uses less digits than its factorization.

2142339986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1903176.

The product of its digits is 559872, while the sum is 47.

The square root of 2142339986 is about 46285.4187190739. The cubic root of 2142339986 is about 1289.1282666859.

The spelling of 2142339986 in words is "two billion, one hundred forty-two million, three hundred thirty-nine thousand, nine hundred eighty-six".

Divisors: 1 2 563 1126 1902611 3805222 1071169993 2142339986