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47047216 = 243897559
BaseRepresentation
bin1011001101111…
…0001000110000
310021112020122111
42303132020300
544021002331
64400215104
71110615616
oct263361060
9107466574
1047047216
11246142a7
121390a494
1399933b8
1463696b6
1541e4db1
hex2cde230

47047216 has 20 divisors (see below), whose sum is σ = 91400400. Its totient is φ = 23460032.

The previous prime is 47047183. The next prime is 47047219. The reversal of 47047216 is 61274074.

It is not an unprimeable number, because it can be changed into a prime (47047219) 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, 2445 + ... + 10003.

It is an arithmetic number, because the mean of its divisors is an integer number (4570020).

Almost surely, 247047216 is an apocalyptic number.

It is an amenable number.

47047216 is a deficient number, since it is larger than the sum of its proper divisors (44353184).

47047216 is a wasteful number, since it uses less digits than its factorization.

47047216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7956 (or 7950 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 47047216 is about 6859.0973167028. The cubic root of 47047216 is about 361.0034146131.

The spelling of 47047216 in words is "forty-seven million, forty-seven thousand, two hundred sixteen".

Divisors: 1 2 4 8 16 389 778 1556 3112 6224 7559 15118 30236 60472 120944 2940451 5880902 11761804 23523608 47047216