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2142847085 = 52278572203
BaseRepresentation
bin111111110111001…
…0100000001101101
312112100010220120212
41333232110001231
513342032101320
6552344352205
7104046620411
oct17756240155
95470126525
102142847085
119aa643805
124b9775665
13281c40572
14164840d41
15c81cc9c5
hex7fb9406d

2142847085 has 16 divisors (see below), whose sum is σ = 2586931776. Its totient is φ = 1703960448.

The previous prime is 2142847061. The next prime is 2142847103. The reversal of 2142847085 is 5807482412.

It is a cyclic number.

It is not a de Polignac number, because 2142847085 - 28 = 2142846829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 971594 + ... + 973796.

It is an arithmetic number, because the mean of its divisors is an integer number (161683236).

Almost surely, 22142847085 is an apocalyptic number.

It is an amenable number.

2142847085 is a deficient number, since it is larger than the sum of its proper divisors (444084691).

2142847085 is a wasteful number, since it uses less digits than its factorization.

2142847085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3292.

The product of its (nonzero) digits is 143360, while the sum is 41.

The square root of 2142847085 is about 46290.8963512266. The cubic root of 2142847085 is about 1289.2299723111.

The spelling of 2142847085 in words is "two billion, one hundred forty-two million, eight hundred forty-seven thousand, eighty-five".

Divisors: 1 5 227 857 1135 2203 4285 11015 194539 500081 972695 1887971 2500405 9439855 428569417 2142847085