Search a number
-
+
10905193728 = 2833112131759
BaseRepresentation
bin10100010100000000…
…00000110100000000
31001011000001020111000
422022000000310000
5134313212144403
65002040052000
7534145421502
oct121200006400
931130036430
1010905193728
114696774500
122144164000
13104a3b1b70
14756471d72
1543c5b37a3
hex28a000d00

10905193728 has 864 divisors, whose sum is σ = 41104022400. Its totient is φ = 2822307840.

The previous prime is 10905193723. The next prime is 10905193729. The reversal of 10905193728 is 82739150901.

10905193728 is a `hidden beast` number, since 10 + 90 + 519 + 37 + 2 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (864).

It is a super-3 number, since 3×109051937283 (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10905193723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 184833763 + ... + 184833821.

It is an arithmetic number, because the mean of its divisors is an integer number (47574100).

Almost surely, 210905193728 is an apocalyptic number.

10905193728 is a gapful number since it is divisible by the number (18) 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 10905193728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20552011200).

10905193728 is an abundant number, since it is smaller than the sum of its proper divisors (30198828672).

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

10905193728 is a wasteful number, since it uses less digits than its factorization.

10905193728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136 (or 105 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 45.

The spelling of 10905193728 in words is "ten billion, nine hundred five million, one hundred ninety-three thousand, seven hundred twenty-eight".