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47231316 = 22331183479
BaseRepresentation
bin1011010000101…
…1000101010100
310021212121012000
42310023011110
544042400231
64404155300
71112313426
oct264130524
9107777160
1047231316
112472a650
1213998b30
139a29132
1463b6816
15422e6e6
hex2d0b154

47231316 has 96 divisors (see below), whose sum is σ = 135475200. Its totient is φ = 14110560.

The previous prime is 47231311. The next prime is 47231333. The reversal of 47231316 is 61313274.

It is a super-2 number, since 2×472313162 = 4461594422183712, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 47231316.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47231311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 98365 + ... + 98843.

It is an arithmetic number, because the mean of its divisors is an integer number (1411200).

Almost surely, 247231316 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 47231316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67737600).

47231316 is an abundant number, since it is smaller than the sum of its proper divisors (88243884).

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

47231316 is a wasteful number, since it uses less digits than its factorization.

47231316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 586 (or 578 counting only the distinct ones).

The product of its digits is 3024, while the sum is 27.

The square root of 47231316 is about 6872.5043470339. The cubic root of 47231316 is about 361.4736813883.

Adding to 47231316 its product of digits (3024), we get a triangular number (47234340 = T9719).

The spelling of 47231316 in words is "forty-seven million, two hundred thirty-one thousand, three hundred sixteen".

Divisors: 1 2 3 4 6 9 11 12 18 22 27 33 36 44 54 66 83 99 108 132 166 198 249 297 332 396 479 498 594 747 913 958 996 1188 1437 1494 1826 1916 2241 2739 2874 2988 3652 4311 4482 5269 5478 5748 8217 8622 8964 10538 10956 12933 15807 16434 17244 21076 24651 25866 31614 32868 39757 47421 49302 51732 63228 79514 94842 98604 119271 142263 159028 189684 238542 284526 357813 437327 477084 569052 715626 874654 1073439 1311981 1431252 1749308 2146878 2623962 3935943 4293756 5247924 7871886 11807829 15743772 23615658 47231316