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50130461 = 149333577
BaseRepresentation
bin1011111100111…
…0111000011101
310111022220001202
42333032320131
5100313133321
64550245245
71146046643
oct277167035
9114286052
1050130461
112632a837
1214956825
13a5028c4
14692d193
15460370b
hex2fcee1d

50130461 has 4 divisors (see below), whose sum is σ = 50165532. Its totient is φ = 50095392.

The previous prime is 50130439. The next prime is 50130481. The reversal of 50130461 is 16403105.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16403105 = 53280621.

It can be written as a sum of positive squares in 2 ways, for example, as 40081561 + 10048900 = 6331^2 + 3170^2 .

It is a cyclic number.

It is not a de Polignac number, because 50130461 - 218 = 49868317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50130481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15296 + ... + 18281.

It is an arithmetic number, because the mean of its divisors is an integer number (12541383).

Almost surely, 250130461 is an apocalyptic number.

It is an amenable number.

50130461 is a deficient number, since it is larger than the sum of its proper divisors (35071).

50130461 is a wasteful number, since it uses less digits than its factorization.

50130461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35070.

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

The square root of 50130461 is about 7080.2867879769. The cubic root of 50130461 is about 368.7232865452.

Adding to 50130461 its reverse (16403105), we get a palindrome (66533566).

The spelling of 50130461 in words is "fifty million, one hundred thirty thousand, four hundred sixty-one".

Divisors: 1 1493 33577 50130461