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13061501 = 35333697
BaseRepresentation
bin110001110100…
…110101111101
3220120121000022
4301310311331
511320432001
61143541525
7216010115
oct61646575
926517008
1013061501
117411332
12445a8a5
1329241cb
141a40045
15123011b
hexc74d7d

13061501 has 4 divisors (see below), whose sum is σ = 13068732. Its totient is φ = 13054272.

The previous prime is 13061471. The next prime is 13061527. The reversal of 13061501 is 10516031.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 10516031 = 38327457.

It can be written as a sum of positive squares in 2 ways, for example, as 5635876 + 7425625 = 2374^2 + 2725^2 .

It is a cyclic number.

It is not a de Polignac number, because 13061501 - 210 = 13060477 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13061501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13061561) 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, 1685 + ... + 5381.

It is an arithmetic number, because the mean of its divisors is an integer number (3267183).

Almost surely, 213061501 is an apocalyptic number.

It is an amenable number.

13061501 is a deficient number, since it is larger than the sum of its proper divisors (7231).

13061501 is an equidigital number, since it uses as much as digits as its factorization.

13061501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7230.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 13061501 is about 3614.0698665078. The cubic root of 13061501 is about 235.5036790040.

Adding to 13061501 its reverse (10516031), we get a palindrome (23577532).

The spelling of 13061501 in words is "thirteen million, sixty-one thousand, five hundred one".

Divisors: 1 3533 3697 13061501