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50130431 = 133856187
BaseRepresentation
bin1011111100111…
…0110111111111
310111022220000122
42333032313333
5100313133211
64550245155
71146046601
oct277166777
9114286018
1050130431
112632a80a
12149567bb
13a5028a0
14692d171
1546036db
hex2fcedff

50130431 has 4 divisors (see below), whose sum is σ = 53986632. Its totient is φ = 46274232.

The previous prime is 50130403. The next prime is 50130439. The reversal of 50130431 is 13403105.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 50130431 - 210 = 50129407 is a prime.

It is a super-2 number, since 2×501304312 = 5026120224491522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50130439) 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, 1928081 + ... + 1928106.

It is an arithmetic number, because the mean of its divisors is an integer number (13496658).

Almost surely, 250130431 is an apocalyptic number.

50130431 is a deficient number, since it is larger than the sum of its proper divisors (3856201).

50130431 is a wasteful number, since it uses less digits than its factorization.

50130431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3856200.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 50130431 is about 7080.2846694183. The cubic root of 50130431 is about 368.7232129924.

Adding to 50130431 its reverse (13403105), we get a palindrome (63533536).

The spelling of 50130431 in words is "fifty million, one hundred thirty thousand, four hundred thirty-one".

Divisors: 1 13 3856187 50130431