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42684271 = 76097753
BaseRepresentation
bin1010001011010…
…0111101101111
32222022120210221
42202310331233
541411344041
64122512211
71025544640
oct242647557
988276727
1042684271
1122104363
1212365667
138ac6586
1459516c7
153b322d1
hex28b4f6f

42684271 has 4 divisors (see below), whose sum is σ = 48782032. Its totient is φ = 36586512.

The previous prime is 42684247. The next prime is 42684283. The reversal of 42684271 is 17248624.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42684271 - 29 = 42683759 is a prime.

It is a super-3 number, since 3×426842713 (a number of 24 digits) contains 333 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 (42684211) 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, 3048870 + ... + 3048883.

It is an arithmetic number, because the mean of its divisors is an integer number (12195508).

Almost surely, 242684271 is an apocalyptic number.

42684271 is a deficient number, since it is larger than the sum of its proper divisors (6097761).

42684271 is an equidigital number, since it uses as much as digits as its factorization.

42684271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6097760.

The product of its digits is 21504, while the sum is 34.

The square root of 42684271 is about 6533.3200595103. The cubic root of 42684271 is about 349.4802380416.

The spelling of 42684271 in words is "forty-two million, six hundred eighty-four thousand, two hundred seventy-one".

Divisors: 1 7 6097753 42684271