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7068780 = 22325173227
BaseRepresentation
bin11010111101110001101100
3111022010112200
4122331301230
53302200110
6411301500
7114040455
oct32756154
914263480
107068780
113a98974
12244a890
131606614
14d2012c
159496c0
hex6bdc6c

7068780 has 72 divisors (see below), whose sum is σ = 21660912. Its totient is φ = 1865856.

The previous prime is 7068773. The next prime is 7068781. The reversal of 7068780 is 878607.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (7068781) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31027 + ... + 31253.

It is an arithmetic number, because the mean of its divisors is an integer number (300846).

Almost surely, 27068780 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 7068780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10830456).

7068780 is an abundant number, since it is smaller than the sum of its proper divisors (14592132).

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

7068780 is a wasteful number, since it uses less digits than its factorization.

7068780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415 (or 410 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 36.

The square root of 7068780 is about 2658.7177360525. The cubic root of 7068780 is about 191.9176078777.

The spelling of 7068780 in words is "seven million, sixty-eight thousand, seven hundred eighty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 173 180 227 346 454 519 681 692 865 908 1038 1135 1362 1557 1730 2043 2076 2270 2595 2724 3114 3405 3460 4086 4540 5190 6228 6810 7785 8172 10215 10380 13620 15570 20430 31140 39271 40860 78542 117813 157084 196355 235626 353439 392710 471252 589065 706878 785420 1178130 1413756 1767195 2356260 3534390 7068780