Search a number
-
+
80680104 = 23333112049
BaseRepresentation
bin1001100111100…
…01010010101000
312121210222022000
410303301102220
5131123230404
612001131000
71666524651
oct463612250
9177728260
1080680104
11415a617a
1223029a60
131393ab0b
14aa02528
15713a339
hex4cf14a8

80680104 has 64 divisors (see below), whose sum is σ = 231360000. Its totient is φ = 26023680.

The previous prime is 80680097. The next prime is 80680123. The reversal of 80680104 is 40108608.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 672 + ... + 12720.

It is an arithmetic number, because the mean of its divisors is an integer number (3615000).

Almost surely, 280680104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80680104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115680000).

80680104 is an abundant number, since it is smaller than the sum of its proper divisors (150679896).

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

80680104 is a wasteful number, since it uses less digits than its factorization.

80680104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12095 (or 12085 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 80680104 is about 8982.2104183770. The cubic root of 80680104 is about 432.1045271756.

The spelling of 80680104 in words is "eighty million, six hundred eighty thousand, one hundred four".

Divisors: 1 2 3 4 6 8 9 12 18 24 27 31 36 54 62 72 93 108 124 186 216 248 279 372 558 744 837 1116 1674 2232 3348 6696 12049 24098 36147 48196 72294 96392 108441 144588 216882 289176 325323 373519 433764 650646 747038 867528 1120557 1301292 1494076 2241114 2602584 2988152 3361671 4482228 6723342 8964456 10085013 13446684 20170026 26893368 40340052 80680104