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14691145 = 571724691
BaseRepresentation
bin111000000010…
…101101001001
31000122101110111
4320002231021
512230104040
61242514321
7235605220
oct70025511
930571414
1014691145
118324747
124b059a1
133074bb1
141d45cb7
151452dea
hexe02b49

14691145 has 16 divisors (see below), whose sum is σ = 21333888. Its totient is φ = 9480960.

The previous prime is 14691143. The next prime is 14691151. The reversal of 14691145 is 54119641.

It is not a de Polignac number, because 14691145 - 21 = 14691143 is a prime.

It is a super-2 number, since 2×146911452 = 431659482822050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14691143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11751 + ... + 12940.

It is an arithmetic number, because the mean of its divisors is an integer number (1333368).

Almost surely, 214691145 is an apocalyptic number.

It is an amenable number.

14691145 is a deficient number, since it is larger than the sum of its proper divisors (6642743).

14691145 is a wasteful number, since it uses less digits than its factorization.

14691145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24720.

The product of its digits is 4320, while the sum is 31.

The square root of 14691145 is about 3832.9029468537. The cubic root of 14691145 is about 244.9167841777.

The spelling of 14691145 in words is "fourteen million, six hundred ninety-one thousand, one hundred forty-five".

Divisors: 1 5 7 17 35 85 119 595 24691 123455 172837 419747 864185 2098735 2938229 14691145