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50013431 = 1323167269
BaseRepresentation
bin1011111011001…
…0010011110111
310111002221112022
42332302103313
5100300412211
64543543355
71145051516
oct276622367
9114087468
1050013431
112625a916
12148bab5b
13a491560
1468dc67d
1545cdbdb
hex2fb24f7

50013431 has 8 divisors (see below), whose sum is σ = 56202720. Its totient is φ = 44158752.

The previous prime is 50013427. The next prime is 50013443. The reversal of 50013431 is 13431005.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 50013431 - 22 = 50013427 is a prime.

It is a super-2 number, since 2×500134312 = 5002686560783522, 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 (50013421) 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 7 ways as a sum of consecutive naturals, for example, 83336 + ... + 83933.

It is an arithmetic number, because the mean of its divisors is an integer number (7025340).

Almost surely, 250013431 is an apocalyptic number.

50013431 is a deficient number, since it is larger than the sum of its proper divisors (6189289).

50013431 is a wasteful number, since it uses less digits than its factorization.

50013431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167305.

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

The square root of 50013431 is about 7072.0174632137. The cubic root of 50013431 is about 368.4361337289.

Adding to 50013431 its reverse (13431005), we get a palindrome (63444436).

It can be divided in two parts, 500 and 13431, that added together give a palindrome (13931).

The spelling of 50013431 in words is "fifty million, thirteen thousand, four hundred thirty-one".

Divisors: 1 13 23 299 167269 2174497 3847187 50013431