Search a number
-
+
10664471145 = 351946380819
BaseRepresentation
bin10011110111010011…
…01110101001101001
31000112020002021011210
421323221232221221
5133320101034040
64522120343333
7525163336416
oct117351565151
930466067153
1010664471145
1145828a8019
122097614b49
13100c56a173
147324cd10d
154263b3480
hex27ba6ea69

10664471145 has 32 divisors (see below), whose sum is σ = 18000230400. Its totient is φ = 5376659904.

The previous prime is 10664471141. The next prime is 10664471159. The reversal of 10664471145 is 54117446601.

It is not a de Polignac number, because 10664471145 - 22 = 10664471141 is a prime.

It is a super-2 number, since 2×106644711452 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10664471141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 91546 + ... + 172364.

It is an arithmetic number, because the mean of its divisors is an integer number (562507200).

Almost surely, 210664471145 is an apocalyptic number.

10664471145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10664471145 is a deficient number, since it is larger than the sum of its proper divisors (7335759255).

10664471145 is a wasteful number, since it uses less digits than its factorization.

10664471145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81309.

The product of its (nonzero) digits is 80640, while the sum is 39.

The spelling of 10664471145 in words is "ten billion, six hundred sixty-four million, four hundred seventy-one thousand, one hundred forty-five".

Divisors: 1 3 5 15 19 57 95 285 463 1389 2315 6945 8797 26391 43985 80819 131955 242457 404095 1212285 1535561 4606683 7677805 23033415 37419197 112257591 187095985 561287955 710964743 2132894229 3554823715 10664471145