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104013380 = 2255200669
BaseRepresentation
bin1100011001100…
…01111001000100
321020201102112102
412030301321010
5203111412010
614153211232
72402046002
oct614617104
9236642472
10104013380
1153792879
122aa00b18
131871a4a3
14db57a72
1591e8ba5
hex6331e44

104013380 has 12 divisors (see below), whose sum is σ = 218428140. Its totient is φ = 41605344.

The previous prime is 104013379. The next prime is 104013389. The reversal of 104013380 is 83310401.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 18783556 + 85229824 = 4334^2 + 9232^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 5200669 = 104013380 / (1 + 0 + 4 + 0 + 1 + 3 + 3 + 8 + 0).

It is not an unprimeable number, because it can be changed into a prime (104013389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2600315 + ... + 2600354.

It is an arithmetic number, because the mean of its divisors is an integer number (18202345).

Almost surely, 2104013380 is an apocalyptic number.

104013380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

104013380 is an abundant number, since it is smaller than the sum of its proper divisors (114414760).

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

104013380 is a wasteful number, since it uses less digits than its factorization.

104013380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5200678 (or 5200676 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 104013380 is about 10198.6950145595. The cubic root of 104013380 is about 470.2871038961.

Adding to 104013380 its reverse (83310401), we get a palindrome (187323781).

The spelling of 104013380 in words is "one hundred four million, thirteen thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 5200669 10401338 20802676 26003345 52006690 104013380