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42629471 = 61636917
BaseRepresentation
bin1010001010011…
…1100101011111
32222012210122022
42202213211133
541403120341
64121410355
71025226113
oct242474537
988183568
1042629471
1122077175
12123399bb
138aa7651
145939743
153b20e4b
hex28a795f

42629471 has 4 divisors (see below), whose sum is σ = 42642552. Its totient is φ = 42616392.

The previous prime is 42629467. The next prime is 42629473. The reversal of 42629471 is 17492624.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 42629471 - 22 = 42629467 is a prime.

It is a super-3 number, since 3×426294713 (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42629473) 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, 2705 + ... + 9621.

It is an arithmetic number, because the mean of its divisors is an integer number (10660638).

Almost surely, 242629471 is an apocalyptic number.

42629471 is a deficient number, since it is larger than the sum of its proper divisors (13081).

42629471 is an equidigital number, since it uses as much as digits as its factorization.

42629471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13080.

The product of its digits is 24192, while the sum is 35.

The square root of 42629471 is about 6529.1248264986. The cubic root of 42629471 is about 349.3306144738.

The spelling of 42629471 in words is "forty-two million, six hundred twenty-nine thousand, four hundred seventy-one".

Divisors: 1 6163 6917 42629471