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47956 = 2219631
BaseRepresentation
bin1011101101010100
32102210011
423231110
53013311
61010004
7256546
oct135524
972704
1047956
1133037
1223904
1318a9c
1413696
15e321
hexbb54

47956 has 12 divisors (see below), whose sum is σ = 88480. Its totient is φ = 22680.

The previous prime is 47951. The next prime is 47963. The reversal of 47956 is 65974.

It is a nialpdrome in base 15 and base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47951) 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, 240 + ... + 391.

247956 is an apocalyptic number.

47956 is the 139-th centered pentagonal number.

It is an amenable number.

47956 is a deficient number, since it is larger than the sum of its proper divisors (40524).

47956 is a wasteful number, since it uses less digits than its factorization.

47956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654 (or 652 counting only the distinct ones).

The product of its digits is 7560, while the sum is 31.

The square root of 47956 is about 218.9885841773. The cubic root of 47956 is about 36.3313038360.

It can be divided in two parts, 479 and 56, that added together give a palindrome (535).

The spelling of 47956 in words is "forty-seven thousand, nine hundred fifty-six".

Divisors: 1 2 4 19 38 76 631 1262 2524 11989 23978 47956