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47147052 = 22317239967
BaseRepresentation
bin1011001111011…
…0100000101100
310021201022121010
42303312200230
544032201202
64402305220
71111512651
oct263664054
9107638533
1047147052
1124682307
1213958210
1399c9984
146393c28
15421476c
hex2cf682c

47147052 has 48 divisors (see below), whose sum is σ = 117089280. Its totient is φ = 14714112.

The previous prime is 47147047. The next prime is 47147059. The reversal of 47147052 is 25074174.

47147052 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (47147059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48273 + ... + 49239.

It is an arithmetic number, because the mean of its divisors is an integer number (2439360).

Almost surely, 247147052 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 47147052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58544640).

47147052 is an abundant number, since it is smaller than the sum of its proper divisors (69942228).

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

47147052 is a wasteful number, since it uses less digits than its factorization.

47147052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1230 (or 1228 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 30.

The square root of 47147052 is about 6866.3710939622. The cubic root of 47147052 is about 361.2585885739.

The spelling of 47147052 in words is "forty-seven million, one hundred forty-seven thousand, fifty-two".

Divisors: 1 2 3 4 6 12 17 34 51 68 102 204 239 478 717 956 967 1434 1934 2868 2901 3868 4063 5802 8126 11604 12189 16252 16439 24378 32878 48756 49317 65756 98634 197268 231113 462226 693339 924452 1386678 2773356 3928921 7857842 11786763 15715684 23573526 47147052