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2989253465 = 511235723059
BaseRepresentation
bin1011001000101100…
…0110001101011001
321201022210210212022
42302023012031121
522110222102330
61212342024225
7134035143452
oct26213061531
97638723768
102989253465
1112a43a0410
126b5118075
133883c0c43
1420500a129
1512766eae5
hexb22c6359

2989253465 has 16 divisors (see below), whose sum is σ = 3915034560. Its totient is φ = 2172985920.

The previous prime is 2989253453. The next prime is 2989253479. The reversal of 2989253465 is 5643529892.

It is not a de Polignac number, because 2989253465 - 26 = 2989253401 is a prime.

It is a Curzon 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, 118106 + ... + 141164.

It is an arithmetic number, because the mean of its divisors is an integer number (244689660).

Almost surely, 22989253465 is an apocalyptic number.

It is an amenable number.

2989253465 is a deficient number, since it is larger than the sum of its proper divisors (925781095).

2989253465 is a wasteful number, since it uses less digits than its factorization.

2989253465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25432.

The product of its digits is 4665600, while the sum is 53.

The square root of 2989253465 is about 54674.0657441899. The cubic root of 2989253465 is about 1440.5253781570.

The spelling of 2989253465 in words is "two billion, nine hundred eighty-nine million, two hundred fifty-three thousand, four hundred sixty-five".

Divisors: 1 5 11 55 2357 11785 23059 25927 115295 129635 253649 1268245 54350063 271750315 597850693 2989253465