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969980 = 225114409
BaseRepresentation
bin11101100110011111100
31211021120012
43230303330
5222014410
632442352
711146634
oct3546374
91737505
10969980
11602840
123a93b8
1327c66b
141b36c4
15142605
hexeccfc

969980 has 24 divisors (see below), whose sum is σ = 2222640. Its totient is φ = 352640.

The previous prime is 969977. The next prime is 969989. The reversal of 969980 is 89969.

It is a super-2 number, since 2×9699802 = 1881722400800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (969989) 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 7 ways as a sum of consecutive naturals, for example, 1985 + ... + 2424.

It is an arithmetic number, because the mean of its divisors is an integer number (92610).

2969980 is an apocalyptic number.

It is an amenable number.

969980 is an abundant number, since it is smaller than the sum of its proper divisors (1252660).

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

969980 is a wasteful number, since it uses less digits than its factorization.

969980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4429 (or 4427 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 41.

The square root of 969980 is about 984.8756266656. The cubic root of 969980 is about 98.9891495778.

It can be divided in two parts, 9699 and 80, that added together give a palindrome (9779).

The spelling of 969980 in words is "nine hundred sixty-nine thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 4409 8818 17636 22045 44090 48499 88180 96998 193996 242495 484990 969980