Search a number
-
+
104120540 = 225231511499
BaseRepresentation
bin1100011010011…
…00000011011100
321020220212112022
412031030003130
5203123324130
614155355312
72403003266
oct615140334
9236825468
10104120540
1153856337
122aa52b38
13187571b4
14db84b36
15921a7e5
hex634c0dc

104120540 has 48 divisors (see below), whose sum is σ = 229824000. Its totient is φ = 39547200.

The previous prime is 104120521. The next prime is 104120543. The reversal of 104120540 is 45021401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104120543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68711 + ... + 70209.

It is an arithmetic number, because the mean of its divisors is an integer number (4788000).

Almost surely, 2104120540 is an apocalyptic number.

104120540 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 104120540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114912000).

104120540 is an abundant number, since it is smaller than the sum of its proper divisors (125703460).

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

104120540 is a wasteful number, since it uses less digits than its factorization.

104120540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1682 (or 1680 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 104120540 is about 10203.9472754420. The cubic root of 104120540 is about 470.4485532183.

Adding to 104120540 its reverse (45021401), we get a palindrome (149141941).

The spelling of 104120540 in words is "one hundred four million, one hundred twenty thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 23 46 92 115 151 230 302 460 604 755 1499 1510 2998 3020 3473 5996 6946 7495 13892 14990 17365 29980 34477 34730 68954 69460 137908 172385 226349 344770 452698 689540 905396 1131745 2263490 4526980 5206027 10412054 20824108 26030135 52060270 104120540