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50151413 = 133857801
BaseRepresentation
bin1011111101001…
…1111111110101
310111100221210202
42333103333311
5100314321123
64550530245
71146165014
oct277237765
9114327722
1050151413
1126344554
1214966985
13a50c2c0
146936a7b
154609a28
hex2fd3ff5

50151413 has 4 divisors (see below), whose sum is σ = 54009228. Its totient is φ = 46293600.

The previous prime is 50151403. The next prime is 50151419. The reversal of 50151413 is 31415105.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31415105 = 56283021.

It can be written as a sum of positive squares in 2 ways, for example, as 24820324 + 25331089 = 4982^2 + 5033^2 .

It is a cyclic number.

It is not a de Polignac number, because 50151413 - 210 = 50150389 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50151419) 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, 1928888 + ... + 1928913.

It is an arithmetic number, because the mean of its divisors is an integer number (13502307).

Almost surely, 250151413 is an apocalyptic number.

It is an amenable number.

50151413 is a deficient number, since it is larger than the sum of its proper divisors (3857815).

50151413 is a wasteful number, since it uses less digits than its factorization.

50151413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3857814.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 50151413 is about 7081.7662344926. The cubic root of 50151413 is about 368.7746486253.

Adding to 50151413 its reverse (31415105), we get a palindrome (81566518).

The spelling of 50151413 in words is "fifty million, one hundred fifty-one thousand, four hundred thirteen".

Divisors: 1 13 3857801 50151413