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2143430895 = 351131264561
BaseRepresentation
bin111111111000010…
…0010100011101111
312112101020120102110
41333300202203233
513342204242040
6552405055103
7104054601444
oct17760424357
95471216373
102143430895
119aaa023a1
124b99b7493
132820b6208
141649539cb
15c8295980
hex7fc228ef

2143430895 has 16 divisors (see below), whose sum is σ = 3459841632. Its totient is φ = 1133045760.

The previous prime is 2143430893. The next prime is 2143430899. The reversal of 2143430895 is 5980343412.

It is not a de Polignac number, because 2143430895 - 21 = 2143430893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143430893) 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, 630586 + ... + 633975.

It is an arithmetic number, because the mean of its divisors is an integer number (216240102).

Almost surely, 22143430895 is an apocalyptic number.

2143430895 is a deficient number, since it is larger than the sum of its proper divisors (1316410737).

2143430895 is a wasteful number, since it uses less digits than its factorization.

2143430895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1264682.

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 2143430895 is about 46297.2018052927. The cubic root of 2143430895 is about 1289.3470435061.

The spelling of 2143430895 in words is "two billion, one hundred forty-three million, four hundred thirty thousand, eight hundred ninety-five".

Divisors: 1 3 5 15 113 339 565 1695 1264561 3793683 6322805 18968415 142895393 428686179 714476965 2143430895