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7090020 = 22325717331
BaseRepresentation
bin11011000010111101100100
3111100012200100
4123002331210
53303340040
6411544100
7114156420
oct33027544
914305610
107090020
114002923
12245b030
1316131a2
14d27b80
15950b30
hex6c2f64

7090020 has 144 divisors (see below), whose sum is σ = 26103168. Its totient is φ = 1520640.

The previous prime is 7090009. The next prime is 7090043. The reversal of 7090020 is 200907.

7090020 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 7089975 and 7090002.

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, 21255 + ... + 21585.

It is an arithmetic number, because the mean of its divisors is an integer number (181272).

Almost surely, 27090020 is an apocalyptic number.

7090020 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7090020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13051584).

7090020 is an abundant number, since it is smaller than the sum of its proper divisors (19013148).

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

7090020 is a wasteful number, since it uses less digits than its factorization.

7090020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370 (or 365 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 18.

The square root of 7090020 is about 2662.7091467151. The cubic root of 7090020 is about 192.1096379023.

Adding to 7090020 its reverse (200907), we get a palindrome (7290927).

The spelling of 7090020 in words is "seven million, ninety thousand, twenty".

Divisors: 1 2 3 4 5 6 7 9 10 12 14 15 17 18 20 21 28 30 34 35 36 42 45 51 60 63 68 70 84 85 90 102 105 119 126 140 153 170 180 204 210 238 252 255 306 315 331 340 357 420 476 510 595 612 630 662 714 765 993 1020 1071 1190 1260 1324 1428 1530 1655 1785 1986 2142 2317 2380 2979 3060 3310 3570 3972 4284 4634 4965 5355 5627 5958 6620 6951 7140 9268 9930 10710 11254 11585 11916 13902 14895 16881 19860 20853 21420 22508 23170 27804 28135 29790 33762 34755 39389 41706 46340 50643 56270 59580 67524 69510 78778 83412 84405 101286 104265 112540 118167 139020 157556 168810 196945 202572 208530 236334 253215 337620 354501 393890 417060 472668 506430 590835 709002 787780 1012860 1181670 1418004 1772505 2363340 3545010 7090020