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50253513 = 3171079209
BaseRepresentation
bin1011111110110…
…0111011001001
310111120010212020
42333230323021
5100331103023
64553035053
71150101462
oct277547311
9114503766
1050253513
1126404232
12149b5a89
13a54690b
146961d69
154629de3
hex2fecec9

50253513 has 16 divisors (see below), whose sum is σ = 71616960. Its totient is φ = 31233536.

The previous prime is 50253431. The next prime is 50253517. The reversal of 50253513 is 31535205.

It is a cyclic number.

It is not a de Polignac number, because 50253513 - 29 = 50253001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (50253517) 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 15 ways as a sum of consecutive naturals, for example, 853 + ... + 10061.

It is an arithmetic number, because the mean of its divisors is an integer number (4476060).

Almost surely, 250253513 is an apocalyptic number.

It is an amenable number.

50253513 is a deficient number, since it is larger than the sum of its proper divisors (21363447).

50253513 is a wasteful number, since it uses less digits than its factorization.

50253513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9336.

The product of its (nonzero) digits is 2250, while the sum is 24.

The square root of 50253513 is about 7088.9712229632. The cubic root of 50253513 is about 369.0247337656.

Adding to 50253513 its reverse (31535205), we get a palindrome (81788718).

The spelling of 50253513 in words is "fifty million, two hundred fifty-three thousand, five hundred thirteen".

Divisors: 1 3 17 51 107 321 1819 5457 9209 27627 156553 469659 985363 2956089 16751171 50253513