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542007215 = 5181598903
BaseRepresentation
bin100000010011100…
…101111110101111
31101202212211010022
4200103211332233
52102223212330
6125441032355
716300661651
oct4023457657
91352784108
10542007215
11258a49052
121316256bb
13883a2439
1451dac6d1
15328b4ae5
hex204e5faf

542007215 has 8 divisors (see below), whose sum is σ = 654003168. Its totient is φ = 431209440.

The previous prime is 542007211. The next prime is 542007223. The reversal of 542007215 is 512700245.

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

It is not a de Polignac number, because 542007215 - 22 = 542007211 is a prime.

It is a super-2 number, since 2×5420072152 = 587543642224112450, 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 (542007211) 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, 298547 + ... + 300356.

It is an arithmetic number, because the mean of its divisors is an integer number (81750396).

Almost surely, 2542007215 is an apocalyptic number.

542007215 is a deficient number, since it is larger than the sum of its proper divisors (111995953).

542007215 is a wasteful number, since it uses less digits than its factorization.

542007215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599089.

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 542007215 is about 23281.0484085232. The cubic root of 542007215 is about 815.3330040438. Note that the first 3 decimals are identical.

The spelling of 542007215 in words is "five hundred forty-two million, seven thousand, two hundred fifteen".

Divisors: 1 5 181 905 598903 2994515 108401443 542007215