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6980180 = 225421829
BaseRepresentation
bin11010101000001001010100
3111010122000012
4122220021110
53241331210
6405335352
7113221244
oct32501124
914118005
106980180
113a38349
122407558
1315a51ac
14cd9b24
1592d305
hex6a8254

6980180 has 24 divisors (see below), whose sum is σ = 14710920. Its totient is φ = 2782080.

The previous prime is 6980179. The next prime is 6980189. The reversal of 6980180 is 810896.

It can be written as a sum of positive squares in 4 ways, for example, as 16 + 6980164 = 4^2 + 2642^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6980189) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8006 + ... + 8834.

It is an arithmetic number, because the mean of its divisors is an integer number (612955).

Almost surely, 26980180 is an apocalyptic number.

It is an amenable number.

6980180 is an abundant number, since it is smaller than the sum of its proper divisors (7730740).

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

6980180 is a wasteful number, since it uses less digits than its factorization.

6980180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1259 (or 1257 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 6980180 is about 2642.0030280073. The cubic root of 6980180 is about 191.1124033424.

The spelling of 6980180 in words is "six million, nine hundred eighty thousand, one hundred eighty".

Divisors: 1 2 4 5 10 20 421 829 842 1658 1684 2105 3316 4145 4210 8290 8420 16580 349009 698018 1396036 1745045 3490090 6980180