Search a number
-
+
86755768 = 231143101227
BaseRepresentation
bin1010010101111…
…00100110111000
320001020122112121
411022330212320
5134202141033
612335251024
72102261161
oct512744670
9201218477
1086755768
1144a75990
1225079a74
1314c87398
14b744768
15793a62d
hex52bc9b8

86755768 has 64 divisors (see below), whose sum is σ = 184187520. Its totient is φ = 37968000.

The previous prime is 86755727. The next prime is 86755807.

86755768 is nontrivially palindromic in base 10.

It is a super-3 number, since 3×867557683 (a number of 25 digits) contains 333 as substring.

Its product of digits (2822400) is a multiple of the sum of its prime divisors (384).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 382071 + ... + 382297.

It is an arithmetic number, because the mean of its divisors is an integer number (2877930).

Almost surely, 286755768 is an apocalyptic number.

86755768 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86755768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92093760).

86755768 is an abundant number, since it is smaller than the sum of its proper divisors (97431752).

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

86755768 is a wasteful number, since it uses less digits than its factorization.

86755768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388 (or 384 counting only the distinct ones).

The product of its digits is 2822400, while the sum is 52.

The square root of 86755768 is about 9314.2776424154. The cubic root of 86755768 is about 442.6897361608.

The spelling of 86755768 in words is "eighty-six million, seven hundred fifty-five thousand, seven hundred sixty-eight".

Divisors: 1 2 4 8 11 22 43 44 86 88 101 172 202 227 344 404 454 473 808 908 946 1111 1816 1892 2222 2497 3784 4343 4444 4994 8686 8888 9761 9988 17372 19522 19976 22927 34744 39044 45854 47773 78088 91708 95546 107371 183416 191092 214742 252197 382184 429484 504394 858968 985861 1008788 1971722 2017576 3943444 7886888 10844471 21688942 43377884 86755768