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47042 = 243547
BaseRepresentation
bin1011011111000010
32101112022
423133002
53001132
61001442
7254102
oct133702
971468
1047042
1132386
1223282
1318548
1413202
15de12
hexb7c2

47042 has 8 divisors (see below), whose sum is σ = 72336. Its totient is φ = 22932.

The previous prime is 47041. The next prime is 47051. The reversal of 47042 is 24074.

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

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 47042.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 47042.

It is not an unprimeable number, because it can be changed into a prime (47041) 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, 188 + ... + 359.

It is an arithmetic number, because the mean of its divisors is an integer number (9042).

247042 is an apocalyptic number.

47042 is a deficient number, since it is larger than the sum of its proper divisors (25294).

47042 is a wasteful number, since it uses less digits than its factorization.

47042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 592.

The product of its (nonzero) digits is 224, while the sum is 17.

The square root of 47042 is about 216.8916780331. The cubic root of 47042 is about 36.0990072956.

It can be divided in two parts, 470 and 42, that added together give a 9-th power (512 = 29).

The spelling of 47042 in words is "forty-seven thousand, forty-two", and thus it is an iban number.

Divisors: 1 2 43 86 547 1094 23521 47042