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7085980 = 22511311039
BaseRepresentation
bin11011000001111110011100
3111100000010201
4123001332130
53303222410
6411513244
7114141556
oct33017634
914300121
107085980
113aaa890
122458824
1316113b5
14d264d6
1594e83a
hex6c1f9c

7085980 has 48 divisors (see below), whose sum is σ = 16773120. Its totient is φ = 2491200.

The previous prime is 7085971. The next prime is 7085983. The reversal of 7085980 is 895807.

It is a super-2 number, since 2×70859802 = 100422225120800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7085983) 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 15 ways as a sum of consecutive naturals, for example, 6301 + ... + 7339.

It is an arithmetic number, because the mean of its divisors is an integer number (349440).

Almost surely, 27085980 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7085980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8386560).

7085980 is an abundant number, since it is smaller than the sum of its proper divisors (9687140).

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

7085980 is a wasteful number, since it uses less digits than its factorization.

7085980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1090 (or 1088 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 37.

The square root of 7085980 is about 2661.9504127613. The cubic root of 7085980 is about 192.0731419827.

The spelling of 7085980 in words is "seven million, eighty-five thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 11 20 22 31 44 55 62 110 124 155 220 310 341 620 682 1039 1364 1705 2078 3410 4156 5195 6820 10390 11429 20780 22858 32209 45716 57145 64418 114290 128836 161045 228580 322090 354299 644180 708598 1417196 1771495 3542990 7085980