Search a number
-
+
8104000 = 26531013
BaseRepresentation
bin11110111010100001000000
3120020201121011
4132322201000
54033312000
6445410304
7125611552
oct36724100
916221534
108104000
114635723
122869994
1318a9888
14110d4d2
15aa12ba
hex7ba840

8104000 has 56 divisors (see below), whose sum is σ = 20089368. Its totient is φ = 3238400.

The previous prime is 8103983. The next prime is 8104007. The reversal of 8104000 is 4018.

It can be written as a sum of positive squares in 4 ways, for example, as 2458624 + 5645376 = 1568^2 + 2376^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8104007) 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, 7494 + ... + 8506.

Almost surely, 28104000 is an apocalyptic number.

8104000 is a gapful number since it is divisible by the number (80) 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 8104000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10044684).

8104000 is an abundant number, since it is smaller than the sum of its proper divisors (11985368).

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

8104000 is a wasteful number, since it uses less digits than its factorization.

8104000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040 (or 1020 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 8104000 is about 2846.7525357853. The cubic root of 8104000 is about 200.8629380017.

Adding to 8104000 its reverse (4018), we get a palindrome (8108018).

It can be divided in two parts, 810 and 4000, that multiplied together give a square (3240000 = 18002).

The spelling of 8104000 in words is "eight million, one hundred four thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 125 160 200 250 320 400 500 800 1000 1013 1600 2000 2026 4000 4052 5065 8000 8104 10130 16208 20260 25325 32416 40520 50650 64832 81040 101300 126625 162080 202600 253250 324160 405200 506500 810400 1013000 1620800 2026000 4052000 8104000