Search a number
-
+
2660312145 = 35177354143
BaseRepresentation
bin1001111010010001…
…0010010001010001
320212101211212012110
42132210102101101
520422014442040
61115551415533
7122632165041
oct23644222121
96771755173
102660312145
111145749987
12622b245a9
133351cbcca
141b3461721
15108845980
hex9e912451

2660312145 has 8 divisors (see below), whose sum is σ = 4256499456. Its totient is φ = 1418833136.

The previous prime is 2660312131. The next prime is 2660312147. The reversal of 2660312145 is 5412130662.

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 2660312145 - 213 = 2660303953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2660312147) 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 7 ways as a sum of consecutive naturals, for example, 88677057 + ... + 88677086.

It is an arithmetic number, because the mean of its divisors is an integer number (532062432).

Almost surely, 22660312145 is an apocalyptic number.

It is an amenable number.

2660312145 is a deficient number, since it is larger than the sum of its proper divisors (1596187311).

2660312145 is a wasteful number, since it uses less digits than its factorization.

2660312145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177354151.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 2660312145 is about 51578.2138601173. The cubic root of 2660312145 is about 1385.6201777969.

The spelling of 2660312145 in words is "two billion, six hundred sixty million, three hundred twelve thousand, one hundred forty-five".

Divisors: 1 3 5 15 177354143 532062429 886770715 2660312145