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104641980 = 223513912547
BaseRepresentation
bin1100011110010…
…11010110111100
321021220100210220
412033023112330
5203242020410
614214501340
72410304442
oct617132674
9237810726
10104641980
1154082083
122b064850
13188aa641
14dc7cb92
1592c0070
hex63cb5bc

104641980 has 48 divisors (see below), whose sum is σ = 295128960. Its totient is φ = 27701568.

The previous prime is 104641969. The next prime is 104641993. The reversal of 104641980 is 89146401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2067 + ... + 14613.

It is an arithmetic number, because the mean of its divisors is an integer number (6148520).

Almost surely, 2104641980 is an apocalyptic number.

104641980 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 104641980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147564480).

104641980 is an abundant number, since it is smaller than the sum of its proper divisors (190486980).

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

104641980 is a wasteful number, since it uses less digits than its factorization.

104641980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12698 (or 12696 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 104641980 is about 10229.4662617362. The cubic root of 104641980 is about 471.2325878267.

The spelling of 104641980 in words is "one hundred four million, six hundred forty-one thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 139 278 417 556 695 834 1390 1668 2085 2780 4170 8340 12547 25094 37641 50188 62735 75282 125470 150564 188205 250940 376410 752820 1744033 3488066 5232099 6976132 8720165 10464198 17440330 20928396 26160495 34880660 52320990 104641980