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47072 = 251471
BaseRepresentation
bin1011011111100000
32101120102
423133200
53001242
61001532
7254144
oct133740
971512
1047072
1132403
12232a8
131856c
1413224
15de32
hexb7e0

47072 has 12 divisors (see below), whose sum is σ = 92736. Its totient is φ = 23520.

The previous prime is 47059. The next prime is 47087. The reversal of 47072 is 27074.

It is an Ulam number.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

47072 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 704 + ... + 767.

It is an arithmetic number, because the mean of its divisors is an integer number (7728).

247072 is an apocalyptic number.

It is an amenable number.

47072 is a deficient number, since it is larger than the sum of its proper divisors (45664).

47072 is a wasteful number, since it uses less digits than its factorization.

47072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1481 (or 1473 counting only the distinct ones).

The product of its (nonzero) digits is 392, while the sum is 20.

The square root of 47072 is about 216.9608259571. The cubic root of 47072 is about 36.1066794474.

The spelling of 47072 in words is "forty-seven thousand, seventy-two", and thus it is an iban number.

Divisors: 1 2 4 8 16 32 1471 2942 5884 11768 23536 47072