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83113668 = 223311431627
BaseRepresentation
bin1001111010000…
…11011011000100
312210101121112000
410331003123010
5132234114133
612125225300
72026311621
oct475033304
9183347460
1083113668
1142a08590
1223a02230
13142b06b1
14b077348
15746b413
hex4f436c4

83113668 has 96 divisors (see below), whose sum is σ = 240683520. Its totient is φ = 24585120.

The previous prime is 83113649. The next prime is 83113669. The reversal of 83113668 is 86631138.

It is a super-3 number, since 3×831136683 (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (83113669) 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 31 ways as a sum of consecutive naturals, for example, 50271 + ... + 51897.

It is an arithmetic number, because the mean of its divisors is an integer number (2507120).

Almost surely, 283113668 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 83113668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120341760).

83113668 is an abundant number, since it is smaller than the sum of its proper divisors (157569852).

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

83113668 is a wasteful number, since it uses less digits than its factorization.

83113668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1694 (or 1686 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 83113668 is about 9116.6697867149. The cubic root of 83113668 is about 436.4061039634.

The spelling of 83113668 in words is "eighty-three million, one hundred thirteen thousand, six hundred sixty-eight".

Divisors: 1 2 3 4 6 9 11 12 18 22 27 33 36 43 44 54 66 86 99 108 129 132 172 198 258 297 387 396 473 516 594 774 946 1161 1188 1419 1548 1627 1892 2322 2838 3254 4257 4644 4881 5676 6508 8514 9762 12771 14643 17028 17897 19524 25542 29286 35794 43929 51084 53691 58572 69961 71588 87858 107382 139922 161073 175716 209883 214764 279844 322146 419766 483219 629649 644292 769571 839532 966438 1259298 1539142 1888947 1932876 2308713 2518596 3078284 3777894 4617426 6926139 7555788 9234852 13852278 20778417 27704556 41556834 83113668