Search a number
-
+
297982945 = 51326317431
BaseRepresentation
bin10001110000101…
…101101111100001
3202202201002202101
4101300231233201
51102240423240
645322450401
710245545641
oct2160555741
9682632671
10297982945
11143226aa7
1283963a01
1349972990
142b80a521
151b26139a
hex11c2dbe1

297982945 has 16 divisors (see below), whose sum is σ = 386572032. Its totient is φ = 219199680.

The previous prime is 297982931. The next prime is 297982973. The reversal of 297982945 is 549289792.

It is not a de Polignac number, because 297982945 - 25 = 297982913 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8380 + ... + 25810.

It is an arithmetic number, because the mean of its divisors is an integer number (24160752).

Almost surely, 2297982945 is an apocalyptic number.

It is an amenable number.

297982945 is a deficient number, since it is larger than the sum of its proper divisors (88589087).

297982945 is a wasteful number, since it uses less digits than its factorization.

297982945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17712.

The product of its digits is 3265920, while the sum is 55.

The square root of 297982945 is about 17262.1825097524. The cubic root of 297982945 is about 667.9292604702.

The spelling of 297982945 in words is "two hundred ninety-seven million, nine hundred eighty-two thousand, nine hundred forty-five".

Divisors: 1 5 13 65 263 1315 3419 17095 17431 87155 226603 1133015 4584353 22921765 59596589 297982945