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9980860 = 225796317
BaseRepresentation
bin100110000100…
…101110111100
3200210002011111
4212010232330
510023341420
6553531404
7150556501
oct46045674
920702144
109980860
1156a784a
123413b64
1320b5c46
14147b4a8
15d2245a
hex984bbc

9980860 has 24 divisors (see below), whose sum is σ = 21228480. Its totient is φ = 3941184.

The previous prime is 9980857. The next prime is 9980863. The reversal of 9980860 is 680899.

It is a happy number.

9980860 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (9980857) and next prime (9980863).

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9980863) 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, 1579 + ... + 4738.

It is an arithmetic number, because the mean of its divisors is an integer number (884520).

Almost surely, 29980860 is an apocalyptic number.

9980860 is the 1580-th decagonal number.

It is an amenable number.

9980860 is an abundant number, since it is smaller than the sum of its proper divisors (11247620).

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

9980860 is a wasteful number, since it uses less digits than its factorization.

9980860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6405 (or 6403 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 9980860 is about 3159.2499109757. The cubic root of 9980860 is about 215.3059282816.

The spelling of 9980860 in words is "nine million, nine hundred eighty thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 20 79 158 316 395 790 1580 6317 12634 25268 31585 63170 126340 499043 998086 1996172 2495215 4990430 9980860