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542066841 = 3260229649
BaseRepresentation
bin100000010011110…
…100100010011001
31101202222211220200
4200103310202121
52102232114331
6125442212413
716301330541
oct4023644231
91352884820
10542066841
11258a89928
12131654109
13883c3614
1451dc6321
15328c75e6
hex204f4899

542066841 has 6 divisors (see below), whose sum is σ = 782985450. Its totient is φ = 361377888.

The previous prime is 542066821. The next prime is 542066843. The reversal of 542066841 is 148660245.

It can be written as a sum of positive squares in only one way, i.e., 538472025 + 3594816 = 23205^2 + 1896^2 .

It is not a de Polignac number, because 542066841 - 25 = 542066809 is a prime.

It is a super-2 number, since 2×5420668412 = 587672920223438562, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 542066796 and 542066805.

It is not an unprimeable number, because it can be changed into a prime (542066843) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30114816 + ... + 30114833.

It is an arithmetic number, because the mean of its divisors is an integer number (130497575).

Almost surely, 2542066841 is an apocalyptic number.

It is an amenable number.

542066841 is a deficient number, since it is larger than the sum of its proper divisors (240918609).

542066841 is a wasteful number, since it uses less digits than its factorization.

542066841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60229655 (or 60229652 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 542066841 is about 23282.3289427841. The cubic root of 542066841 is about 815.3629011015.

The spelling of 542066841 in words is "five hundred forty-two million, sixty-six thousand, eight hundred forty-one".

Divisors: 1 3 9 60229649 180688947 542066841