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80678010 = 2357271773
BaseRepresentation
bin1001100111100…
…00110001111010
312121210212102110
410303300301322
5131123144020
612001113150
71666515600
oct463606172
9177725373
1080678010
11415a4646
12230287b6
1313939b8a
14aa01870
1571398e0
hex4cf0c7a

80678010 has 96 divisors (see below), whose sum is σ = 228707712. Its totient is φ = 18157440.

The previous prime is 80677999. The next prime is 80678011. The reversal of 80678010 is 1087608.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (80678011) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 103984 + ... + 104756.

It is an arithmetic number, because the mean of its divisors is an integer number (2382372).

Almost surely, 280678010 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80678010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114353856).

80678010 is an abundant number, since it is smaller than the sum of its proper divisors (148029702).

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

80678010 is a wasteful number, since it uses less digits than its factorization.

80678010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868 (or 861 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 80678010 is about 8982.0938538851. The cubic root of 80678010 is about 432.1007888119.

The spelling of 80678010 in words is "eighty million, six hundred seventy-eight thousand, ten".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 49 70 71 98 105 142 147 210 213 245 294 355 426 490 497 710 735 773 994 1065 1470 1491 1546 2130 2319 2485 2982 3479 3865 4638 4970 5411 6958 7455 7730 10437 10822 11595 14910 16233 17395 20874 23190 27055 32466 34790 37877 52185 54110 54883 75754 81165 104370 109766 113631 162330 164649 189385 227262 274415 329298 378770 384181 548830 568155 768362 823245 1136310 1152543 1646490 1920905 2305086 2689267 3841810 5378534 5762715 8067801 11525430 13446335 16135602 26892670 40339005 80678010