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50013380 = 2252500669
BaseRepresentation
bin1011111011001…
…0010011000100
310111002221110102
42332302103010
5100300412010
64543543232
71145051414
oct276622304
9114087412
1050013380
112625a87a
12148bab18
13a491521
1468dc644
1545cdba5
hex2fb24c4

50013380 has 12 divisors (see below), whose sum is σ = 105028140. Its totient is φ = 20005344.

The previous prime is 50013373. The next prime is 50013389. The reversal of 50013380 is 8331005.

50013380 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 17909824 + 32103556 = 4232^2 + 5666^2 .

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: 2500669 = 50013380 / (5 + 0 + 0 + 1 + 3 + 3 + 8 + 0).

It is not an unprimeable number, because it can be changed into a prime (50013389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1250315 + ... + 1250354.

It is an arithmetic number, because the mean of its divisors is an integer number (8752345).

Almost surely, 250013380 is an apocalyptic number.

It is an amenable number.

50013380 is an abundant number, since it is smaller than the sum of its proper divisors (55014760).

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

50013380 is a wasteful number, since it uses less digits than its factorization.

50013380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2500678 (or 2500676 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 50013380 is about 7072.0138574525. The cubic root of 50013380 is about 368.4360084942.

Adding to 50013380 its reverse (8331005), we get a palindrome (58344385).

The spelling of 50013380 in words is "fifty million, thirteen thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 2500669 5001338 10002676 12503345 25006690 50013380