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14530805 = 52906161
BaseRepresentation
bin110111011011…
…100011110101
31000100020111222
4313123203311
512204441210
61235240125
7234336602
oct67334365
930306458
1014530805
118225233
124a49045
133019c13
141d036a9
151420655
hexddb8f5

14530805 has 4 divisors (see below), whose sum is σ = 17436972. Its totient is φ = 11624640.

The previous prime is 14530799. The next prime is 14530807. The reversal of 14530805 is 50803541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50803541 = 191326557.

It can be written as a sum of positive squares in 2 ways, for example, as 2427364 + 12103441 = 1558^2 + 3479^2 .

It is a de Polignac number, because none of the positive numbers 2k-14530805 is a prime.

It is a super-2 number, since 2×145308052 = 422288587896050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14530807) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1453076 + ... + 1453085.

It is an arithmetic number, because the mean of its divisors is an integer number (4359243).

Almost surely, 214530805 is an apocalyptic number.

It is an amenable number.

14530805 is a deficient number, since it is larger than the sum of its proper divisors (2906167).

14530805 is an equidigital number, since it uses as much as digits as its factorization.

14530805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2906166.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 14530805 is about 3811.9293015480. The cubic root of 14530805 is about 244.0225109125.

The spelling of 14530805 in words is "fourteen million, five hundred thirty thousand, eight hundred five".

Divisors: 1 5 2906161 14530805