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47986216 = 235998277
BaseRepresentation
bin1011011100001…
…1011000101000
310100021221201021
42313003120220
544241024331
64432302224
71121606335
oct267033050
9110257637
1047986216
11250a5833
12140a1974
139c31915
14653198c
15432d211
hex2dc3628

47986216 has 8 divisors (see below), whose sum is σ = 89974170. Its totient is φ = 23993104.

The previous prime is 47986207. The next prime is 47986243. The reversal of 47986216 is 61268974.

It can be written as a sum of positive squares in only one way, i.e., 24502500 + 23483716 = 4950^2 + 4846^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2999131 + ... + 2999146.

Almost surely, 247986216 is an apocalyptic number.

It is an amenable number.

47986216 is a deficient number, since it is larger than the sum of its proper divisors (41987954).

47986216 is a wasteful number, since it uses less digits than its factorization.

47986216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5998283 (or 5998279 counting only the distinct ones).

The product of its digits is 145152, while the sum is 43.

The square root of 47986216 is about 6927.2083843349. The cubic root of 47986216 is about 363.3893274717.

The spelling of 47986216 in words is "forty-seven million, nine hundred eighty-six thousand, two hundred sixteen".

Divisors: 1 2 4 8 5998277 11996554 23993108 47986216