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2143054154 = 22933657089
BaseRepresentation
bin111111110111100…
…0110100101001010
312112100112102122002
41333233012211022
513342110213104
6552353031002
7104051442203
oct17757064512
95470472562
102143054154
119aa77533a
124b9855462
13281cb38a7
141648965aa
15c821e01e
hex7fbc694a

2143054154 has 8 divisors (see below), whose sum is σ = 3225553380. Its totient is φ = 1067869696.

The previous prime is 2143054129. The next prime is 2143054157. The reversal of 2143054154 is 4514503412.

It can be written as a sum of positive squares in 2 ways, for example, as 1548816025 + 594238129 = 39355^2 + 24377^2 .

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

It is a super-2 number, since 2×21430541542 = 9185362213953311432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2143054157) 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, 1827959 + ... + 1829130.

Almost surely, 22143054154 is an apocalyptic number.

2143054154 is a deficient number, since it is larger than the sum of its proper divisors (1082499226).

2143054154 is a wasteful number, since it uses less digits than its factorization.

2143054154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3657384.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 2143054154 is about 46293.1329032719. The cubic root of 2143054154 is about 1289.2714982113.

Adding to 2143054154 its reverse (4514503412), we get a palindrome (6657557566).

The spelling of 2143054154 in words is "two billion, one hundred forty-three million, fifty-four thousand, one hundred fifty-four".

Divisors: 1 2 293 586 3657089 7314178 1071527077 2143054154