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50135130 = 2325557057
BaseRepresentation
bin1011111101000…
…0000001011010
310111100010110200
42333100001122
5100313311010
64550323030
71146066363
oct277200132
9114303420
1050135130
11263332a1
1214959476
13a504a76
146930b6a
154604cc0
hex2fd005a

50135130 has 24 divisors (see below), whose sum is σ = 130351572. Its totient is φ = 13369344.

The previous prime is 50135123. The next prime is 50135131. The reversal of 50135130 is 3153105.

It is a happy number.

50135130 is a `hidden beast` number, since 501 + 35 + 130 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 41332041 + 8803089 = 6429^2 + 2967^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (50135131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 278439 + ... + 278618.

Almost surely, 250135130 is an apocalyptic number.

50135130 is an abundant number, since it is smaller than the sum of its proper divisors (80216442).

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

50135130 is a wasteful number, since it uses less digits than its factorization.

50135130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557070 (or 557067 counting only the distinct ones).

The product of its (nonzero) digits is 225, while the sum is 18.

The square root of 50135130 is about 7080.6164985826. The cubic root of 50135130 is about 368.7347334482.

Adding to 50135130 its reverse (3153105), we get a palindrome (53288235).

The spelling of 50135130 in words is "fifty million, one hundred thirty-five thousand, one hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 557057 1114114 1671171 2785285 3342342 5013513 5570570 8355855 10027026 16711710 25067565 50135130