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2142758874 = 233137503619
BaseRepresentation
bin111111110110111…
…1110011111011010
312112022222102120210
41333231332133122
513342021240444
6552342431550
7104046102264
oct17755763732
95468872523
102142758874
119aa593503
124b97325b6
13281c0c379
1416481ab34
15c81b17b9
hex7fb7e7da

2142758874 has 64 divisors (see below), whose sum is σ = 4559708160. Its totient is φ = 670109760.

The previous prime is 2142758869. The next prime is 2142758879. The reversal of 2142758874 is 4788572412.

It is an interprime number because it is at equal distance from previous prime (2142758869) and next prime (2142758879).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2142758879) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3461337 + ... + 3461955.

It is an arithmetic number, because the mean of its divisors is an integer number (71245440).

Almost surely, 22142758874 is an apocalyptic number.

2142758874 is an abundant number, since it is smaller than the sum of its proper divisors (2416949286).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2142758874 is a wasteful number, since it uses less digits than its factorization.

2142758874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1195.

The product of its digits is 1003520, while the sum is 48.

The square root of 2142758874 is about 46289.9435514886. The cubic root of 2142758874 is about 1289.2122815441.

The spelling of 2142758874 in words is "two billion, one hundred forty-two million, seven hundred fifty-eight thousand, eight hundred seventy-four".

Divisors: 1 2 3 6 31 37 62 74 93 111 186 222 503 619 1006 1147 1238 1509 1857 2294 3018 3441 3714 6882 15593 18611 19189 22903 31186 37222 38378 45806 46779 55833 57567 68709 93558 111666 115134 137418 311357 576941 622714 709993 934071 1153882 1419986 1730823 1868142 2129979 3461646 4259958 9652067 11520209 19304134 23040418 28956201 34560627 57912402 69121254 357126479 714252958 1071379437 2142758874