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14407481 = 118091619
BaseRepresentation
bin110110111101…
…011100111001
31000002222100102
4312331130321
512142014411
61232445145
7233314214
oct66753471
930088312
1014407481
118150610
1249a97b5
132ca5a4a
141cb077b
1513e8d3b
hexdbd739

14407481 has 8 divisors (see below), whose sum is σ = 15746400. Its totient is φ = 13073440.

The previous prime is 14407469. The next prime is 14407487. The reversal of 14407481 is 18470441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-14407481 is a prime.

It is a super-2 number, since 2×144074812 = 415151017530722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14407487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8090 + ... + 9708.

It is an arithmetic number, because the mean of its divisors is an integer number (1968300).

Almost surely, 214407481 is an apocalyptic number.

14407481 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

14407481 is a deficient number, since it is larger than the sum of its proper divisors (1338919).

14407481 is a wasteful number, since it uses less digits than its factorization.

14407481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2439.

The product of its (nonzero) digits is 3584, while the sum is 29.

The square root of 14407481 is about 3795.7187725120. The cubic root of 14407481 is about 243.3302030414.

The spelling of 14407481 in words is "fourteen million, four hundred seven thousand, four hundred eighty-one".

Divisors: 1 11 809 1619 8899 17809 1309771 14407481