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47071012 = 22711071549
BaseRepresentation
bin1011001110001…
…1111100100100
310021120110021211
42303203330210
544022233022
64400521204
71111045162
oct263437444
9107513254
1047071012
112463016a
1213920204
1399a1191
146374232
1541ebe77
hex2ce3f24

47071012 has 24 divisors (see below), whose sum is σ = 84369600. Its totient is φ = 22972320.

The previous prime is 47071009. The next prime is 47071019. The reversal of 47071012 is 21017074.

It is not an unprimeable number, because it can be changed into a prime (47071019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29614 + ... + 31162.

It is an arithmetic number, because the mean of its divisors is an integer number (3515400).

Almost surely, 247071012 is an apocalyptic number.

It is an amenable number.

47071012 is a deficient number, since it is larger than the sum of its proper divisors (37298588).

47071012 is a wasteful number, since it uses less digits than its factorization.

47071012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1731 (or 1729 counting only the distinct ones).

The product of its (nonzero) digits is 392, while the sum is 22.

The square root of 47071012 is about 6860.8317280050. The cubic root of 47071012 is about 361.0642682978.

Adding to 47071012 its reverse (21017074), we get a palindrome (68088086).

The spelling of 47071012 in words is "forty-seven million, seventy-one thousand, twelve".

Divisors: 1 2 4 71 107 142 214 284 428 1549 3098 6196 7597 15194 30388 109979 165743 219958 331486 439916 662972 11767753 23535506 47071012