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11650145 = 513179233
BaseRepresentation
bin101100011100…
…010001100001
3210220212222212
4230130101201
510440301040
61053411505
7201011303
oct54342141
923825885
1011650145
116637a21
123a99b95
13254b9a0
141793973
151051d65
hexb1c461

11650145 has 8 divisors (see below), whose sum is σ = 15055656. Its totient is φ = 8603136.

The previous prime is 11650139. The next prime is 11650147. The reversal of 11650145 is 54105611.

It can be written as a sum of positive squares in 4 ways, for example, as 707281 + 10942864 = 841^2 + 3308^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11650145 - 28 = 11649889 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11650145.

It is not an unprimeable number, because it can be changed into a prime (11650147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89552 + ... + 89681.

It is an arithmetic number, because the mean of its divisors is an integer number (1881957).

Almost surely, 211650145 is an apocalyptic number.

It is an amenable number.

11650145 is a deficient number, since it is larger than the sum of its proper divisors (3405511).

11650145 is a wasteful number, since it uses less digits than its factorization.

11650145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179251.

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 11650145 is about 3413.2308741133. The cubic root of 11650145 is about 226.6959581043.

Adding to 11650145 its reverse (54105611), we get a palindrome (65755756).

The spelling of 11650145 in words is "eleven million, six hundred fifty thousand, one hundred forty-five".

Divisors: 1 5 13 65 179233 896165 2330029 11650145