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14538091 = 104913859
BaseRepresentation
bin110111011101…
…010101101011
31000100121111211
4313131111223
512210204331
61235333551
7234400051
oct67352553
930317454
1014538091
11822a757
124a512b7
133020329
141d061d1
1514228b1
hexddd56b

14538091 has 4 divisors (see below), whose sum is σ = 14553000. Its totient is φ = 14523184.

The previous prime is 14538089. The next prime is 14538103. The reversal of 14538091 is 19083541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19083541 = 59931859.

It is a cyclic number.

It is not a de Polignac number, because 14538091 - 21 = 14538089 is a prime.

It is a super-2 number, since 2×145380912 = 422712179848562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14568091) 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, 5881 + ... + 7978.

It is an arithmetic number, because the mean of its divisors is an integer number (3638250).

Almost surely, 214538091 is an apocalyptic number.

14538091 is a deficient number, since it is larger than the sum of its proper divisors (14909).

14538091 is a wasteful number, since it uses less digits than its factorization.

14538091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14908.

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

The square root of 14538091 is about 3812.8848658201. The cubic root of 14538091 is about 244.0632898171.

The spelling of 14538091 in words is "fourteen million, five hundred thirty-eight thousand, ninety-one".

Divisors: 1 1049 13859 14538091