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14155501 = 97145933
BaseRepresentation
bin110101111111…
…111011101101
3222122011200211
4311333323231
512110434001
61223222421
7231214453
oct65777355
928564624
1014155501
117a99268
1248a7a11
132c18149
141c469d3
151399351
hexd7feed

14155501 has 4 divisors (see below), whose sum is σ = 14301532. Its totient is φ = 14009472.

The previous prime is 14155489. The next prime is 14155523. The reversal of 14155501 is 10555141.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10555141 = 99110651.

It can be written as a sum of positive squares in 2 ways, for example, as 11737476 + 2418025 = 3426^2 + 1555^2 .

It is a cyclic number.

It is not a de Polignac number, because 14155501 - 25 = 14155469 is a prime.

It is a super-2 number, since 2×141555012 = 400756417122002, 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 (14155301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72870 + ... + 73063.

It is an arithmetic number, because the mean of its divisors is an integer number (3575383).

Almost surely, 214155501 is an apocalyptic number.

It is an amenable number.

14155501 is a deficient number, since it is larger than the sum of its proper divisors (146031).

14155501 is an equidigital number, since it uses as much as digits as its factorization.

14155501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146030.

The product of its (nonzero) digits is 500, while the sum is 22.

The square root of 14155501 is about 3762.3796990734. The cubic root of 14155501 is about 241.9032750988.

The spelling of 14155501 in words is "fourteen million, one hundred fifty-five thousand, five hundred one".

Divisors: 1 97 145933 14155501