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2868021234 = 23213193120809
BaseRepresentation
bin1010101011110010…
…1000011111110010
321101212200120111200
42222330220133302
521333203134414
61152331352030
7131033530641
oct25274503762
97355616450
102868021234
111241a17891
126805b2616
133692551b0
141d2c8d358
1511bbc4109
hexaaf287f2

2868021234 has 96 divisors (see below), whose sum is σ = 7271846400. Its totient is φ = 809015040.

The previous prime is 2868021209. The next prime is 2868021269. The reversal of 2868021234 is 4321208682.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 127422 + ... + 148230.

It is an arithmetic number, because the mean of its divisors is an integer number (75748400).

Almost surely, 22868021234 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2868021234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3635923200).

2868021234 is an abundant number, since it is smaller than the sum of its proper divisors (4403825166).

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

2868021234 is a wasteful number, since it uses less digits than its factorization.

2868021234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20880 (or 20877 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 2868021234 is about 53553.9096051820. The cubic root of 2868021234 is about 1420.7820254348.

The spelling of 2868021234 in words is "two billion, eight hundred sixty-eight million, twenty-one thousand, two hundred thirty-four".

Divisors: 1 2 3 6 9 13 18 19 26 31 38 39 57 62 78 93 114 117 171 186 234 247 279 342 403 494 558 589 741 806 1178 1209 1482 1767 2223 2418 3534 3627 4446 5301 7254 7657 10602 15314 20809 22971 41618 45942 62427 68913 124854 137826 187281 270517 374562 395371 541034 645079 790742 811551 1186113 1290158 1623102 1935237 2372226 2434653 3558339 3870474 4869306 5139823 5805711 7116678 8386027 10279646 11611422 12256501 15419469 16772054 24513002 25158081 30838938 36769503 46258407 50316162 73539006 75474243 92516814 110308509 150948486 159334513 220617018 318669026 478003539 956007078 1434010617 2868021234