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542415133 = 133246889
BaseRepresentation
bin100000010101001…
…001100100011101
31101210122112200101
4200111021210131
52102324241013
6125453501101
716304311141
oct4025114435
91353575611
10542415133
112591a7577
121317a1791
13884b6000
1452077221
15329458dd
hex2054991d

542415133 has 8 divisors (see below), whose sum is σ = 587598200. Its totient is φ = 500688864.

The previous prime is 542415131. The next prime is 542415157. The reversal of 542415133 is 331514245.

It can be written as a sum of positive squares in 4 ways, for example, as 87104889 + 455310244 = 9333^2 + 21338^2 .

It is not a de Polignac number, because 542415133 - 21 = 542415131 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 (542415131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121248 + ... + 125641.

It is an arithmetic number, because the mean of its divisors is an integer number (73449775).

Almost surely, 2542415133 is an apocalyptic number.

It is an amenable number.

542415133 is a deficient number, since it is larger than the sum of its proper divisors (45183067).

542415133 is an equidigital number, since it uses as much as digits as its factorization.

542415133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246928 (or 246902 counting only the distinct ones).

The product of its digits is 7200, while the sum is 28.

The square root of 542415133 is about 23289.8074916904. The cubic root of 542415133 is about 815.5374943149.

Adding to 542415133 its reverse (331514245), we get a palindrome (873929378).

The spelling of 542415133 in words is "five hundred forty-two million, four hundred fifteen thousand, one hundred thirty-three".

Divisors: 1 13 169 2197 246889 3209557 41724241 542415133