Search a number
-
+
10755066521 = 78283137387
BaseRepresentation
bin10100000010000110…
…10100101010011001
31000202112112222200002
422001003110222121
5134011244112041
64535114222345
7530343362033
oct120103245231
930675488602
1010755066521
114619a55731
122101a249b5
13102526a0b4
14740552c53
1542e30b59b
hex2810d4a99

10755066521 has 4 divisors (see below), whose sum is σ = 10755282192. Its totient is φ = 10754850852.

The previous prime is 10755066479. The next prime is 10755066523. The reversal of 10755066521 is 12566055701.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12566055701 = 20897601333.

It is a cyclic number.

It is not a de Polignac number, because 10755066521 - 26 = 10755066457 is a prime.

It is a super-2 number, since 2×107550665212 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10755066523) 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 3 ways as a sum of consecutive naturals, for example, 9590 + ... + 146976.

It is an arithmetic number, because the mean of its divisors is an integer number (2688820548).

Almost surely, 210755066521 is an apocalyptic number.

It is an amenable number.

10755066521 is a deficient number, since it is larger than the sum of its proper divisors (215671).

10755066521 is an equidigital number, since it uses as much as digits as its factorization.

10755066521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215670.

The product of its (nonzero) digits is 63000, while the sum is 38.

The spelling of 10755066521 in words is "ten billion, seven hundred fifty-five million, sixty-six thousand, five hundred twenty-one".

Divisors: 1 78283 137387 10755066521