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47197072 = 24131032203
BaseRepresentation
bin1011010000001…
…0101110010000
310021210212012201
42310002232100
544040301242
64403332544
71112111536
oct264025620
9107725181
1047197072
112470694a
1213981154
139a16680
1463a8156
1542244b7
hex2d02b90

47197072 has 40 divisors (see below), whose sum is σ = 99479744. Its totient is φ = 21561984.

The previous prime is 47197069. The next prime is 47197079. The reversal of 47197072 is 27079174.

It is not an unprimeable number, because it can be changed into a prime (47197079) 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, 20323 + ... + 22525.

Almost surely, 247197072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47197072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49739872).

47197072 is an abundant number, since it is smaller than the sum of its proper divisors (52282672).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47197072 is a wasteful number, since it uses less digits than its factorization.

47197072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2327 (or 2321 counting only the distinct ones).

The product of its (nonzero) digits is 24696, while the sum is 37.

The square root of 47197072 is about 6870.0125181836. The cubic root of 47197072 is about 361.3863008215.

The spelling of 47197072 in words is "forty-seven million, one hundred ninety-seven thousand, seventy-two".

Divisors: 1 2 4 8 13 16 26 52 103 104 206 208 412 824 1339 1648 2203 2678 4406 5356 8812 10712 17624 21424 28639 35248 57278 114556 226909 229112 453818 458224 907636 1815272 2949817 3630544 5899634 11799268 23598536 47197072