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13500101 = 64121061
BaseRepresentation
bin110011011111…
…111011000101
3221101212122202
4303133323011
511424000401
61201204245
7222514616
oct63377305
927355582
1013500101
11769090a
124630685
132a48a34
141b15c0d
1512ba06b
hexcdfec5

13500101 has 4 divisors (see below), whose sum is σ = 13521804. Its totient is φ = 13478400.

The previous prime is 13500077. The next prime is 13500119. The reversal of 13500101 is 10100531.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12967201 + 532900 = 3601^2 + 730^2 .

It is a cyclic number.

It is not a de Polignac number, because 13500101 - 26 = 13500037 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13500121) 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, 9890 + ... + 11171.

It is an arithmetic number, because the mean of its divisors is an integer number (3380451).

Almost surely, 213500101 is an apocalyptic number.

It is an amenable number.

13500101 is a deficient number, since it is larger than the sum of its proper divisors (21703).

13500101 is an equidigital number, since it uses as much as digits as its factorization.

13500101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21702.

The product of its (nonzero) digits is 15, while the sum is 11.

The square root of 13500101 is about 3674.2483585082. The cubic root of 13500101 is about 238.1107515993.

Adding to 13500101 its reverse (10100531), we get a palindrome (23600632).

The spelling of 13500101 in words is "thirteen million, five hundred thousand, one hundred one".

Divisors: 1 641 21061 13500101