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10816980 = 22351391297
BaseRepresentation
bin101001010000…
…110111010100
3202100120002220
4221100313110
510232120410
61023502340
7160641246
oct51206724
922316086
1010816980
116118a59
1237579b0
1323196a5
141618096
15e3a070
hexa50dd4

10816980 has 48 divisors (see below), whose sum is σ = 30528960. Its totient is φ = 2861568.

The previous prime is 10816961. The next prime is 10816997. The reversal of 10816980 is 8961801.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7692 + ... + 8988.

It is an arithmetic number, because the mean of its divisors is an integer number (636020).

Almost surely, 210816980 is an apocalyptic number.

10816980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10816980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15264480).

10816980 is an abundant number, since it is smaller than the sum of its proper divisors (19711980).

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

10816980 is a wasteful number, since it uses less digits than its factorization.

10816980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1448 (or 1446 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 33.

The square root of 10816980 is about 3288.9177551286. The cubic root of 10816980 is about 221.1576715852.

The spelling of 10816980 in words is "ten million, eight hundred sixteen thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 139 278 417 556 695 834 1297 1390 1668 2085 2594 2780 3891 4170 5188 6485 7782 8340 12970 15564 19455 25940 38910 77820 180283 360566 540849 721132 901415 1081698 1802830 2163396 2704245 3605660 5408490 10816980