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7828163090 = 25113110921061
BaseRepresentation
bin1110100101001100…
…00100101000010010
3202012120001212222022
413102212010220102
5112013002204330
63332440411442
7364663200626
oct72246045022
922176055868
107828163090
113357880880
121625776b82
13979a69987
14543937186
1530c3a5ae5
hex1d2984a12

7828163090 has 64 divisors (see below), whose sum is σ = 16013859840. Its totient is φ = 2729376000.

The previous prime is 7828163069. The next prime is 7828163093. The reversal of 7828163090 is 903618287.

It is a super-2 number, since 2×78281630902 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7828163093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 361160 + ... + 382220.

It is an arithmetic number, because the mean of its divisors is an integer number (250216560).

Almost surely, 27828163090 is an apocalyptic number.

7828163090 is an abundant number, since it is smaller than the sum of its proper divisors (8185696750).

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

7828163090 is a wasteful number, since it uses less digits than its factorization.

7828163090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21219.

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 7828163090 is about 88476.9071001015. The cubic root of 7828163090 is about 1985.5764887139.

The spelling of 7828163090 in words is "seven billion, eight hundred twenty-eight million, one hundred sixty-three thousand, ninety".

Divisors: 1 2 5 10 11 22 31 55 62 109 110 155 218 310 341 545 682 1090 1199 1705 2398 3379 3410 5995 6758 11990 16895 21061 33790 37169 42122 74338 105305 185845 210610 231671 371690 463342 652891 1158355 1305782 2295649 2316710 3264455 4591298 6528910 7181801 11478245 14363602 22956490 25252139 35909005 50504278 71165119 71818010 126260695 142330238 252521390 355825595 711651190 782816309 1565632618 3914081545 7828163090