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4284381386 = 22142190693
BaseRepresentation
bin1111111101011110…
…0111100011001010
3102001120211010101002
43333113213203022
532233300201021
61545045055002
7211112432555
oct37727474312
912046733332
104284381386
1118a947016a
129b69b7462
1353381141c
142c901d69c
151a11eb50b
hexff5e78ca

4284381386 has 4 divisors (see below), whose sum is σ = 6426572082. Its totient is φ = 2142190692.

The previous prime is 4284381377. The next prime is 4284381389. The reversal of 4284381386 is 6831834824.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2402470225 + 1881911161 = 49015^2 + 43381^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 4284381386.

It is not an unprimeable number, because it can be changed into a prime (4284381389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071095345 + ... + 1071095348.

Almost surely, 24284381386 is an apocalyptic number.

4284381386 is a deficient number, since it is larger than the sum of its proper divisors (2142190696).

4284381386 is a wasteful number, since it uses less digits than its factorization.

4284381386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2142190695.

The product of its digits is 884736, while the sum is 47.

The square root of 4284381386 is about 65455.1860894154. The cubic root of 4284381386 is about 1624.1621098599.

The spelling of 4284381386 in words is "four billion, two hundred eighty-four million, three hundred eighty-one thousand, three hundred eighty-six".

Divisors: 1 2 2142190693 4284381386