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13755073 = 61225493
BaseRepresentation
bin110100011110…
…001011000001
3221212211102011
4310132023001
512010130243
61210452521
7224626153
oct64361301
927784364
1013755073
117845432
124734141
132b07ac7
141b80ad3
15131a89d
hexd1e2c1

13755073 has 4 divisors (see below), whose sum is σ = 13980628. Its totient is φ = 13529520.

The previous prime is 13755061. The next prime is 13755097. The reversal of 13755073 is 37055731.

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: 37055731 = 61607471.

It can be written as a sum of positive squares in 2 ways, for example, as 6906384 + 6848689 = 2628^2 + 2617^2 .

It is a cyclic number.

It is not a de Polignac number, because 13755073 - 29 = 13754561 is a prime.

It is a super-3 number, since 3×137550733 (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13755013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112686 + ... + 112807.

It is an arithmetic number, because the mean of its divisors is an integer number (3495157).

Almost surely, 213755073 is an apocalyptic number.

It is an amenable number.

13755073 is a deficient number, since it is larger than the sum of its proper divisors (225555).

13755073 is an equidigital number, since it uses as much as digits as its factorization.

13755073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225554.

The product of its (nonzero) digits is 11025, while the sum is 31.

The square root of 13755073 is about 3708.7832236463. The cubic root of 13755073 is about 239.6004521068.

The spelling of 13755073 in words is "thirteen million, seven hundred fifty-five thousand, seventy-three".

Divisors: 1 61 225493 13755073