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36120901 = 190119001
BaseRepresentation
bin1000100111001…
…0100101000101
32111222010120011
42021302211011
533221332101
63330110221
7616010515
oct211624505
974863504
1036120901
1119431193
121011b371
13763901b
144b23845
153287751
hex2272945

36120901 has 4 divisors (see below), whose sum is σ = 36141804. Its totient is φ = 36100000.

The previous prime is 36120827. The next prime is 36120907. The reversal of 36120901 is 10902163.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10902163 = 79713679.

It can be written as a sum of positive squares in 2 ways, for example, as 4198401 + 31922500 = 2049^2 + 5650^2 .

It is a 3-Lehmer number, since φ(36120901) divides (36120901-1)3.

It is a cyclic number.

It is not a de Polignac number, because 36120901 - 29 = 36120389 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36120907) 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, 7600 + ... + 11401.

It is an arithmetic number, because the mean of its divisors is an integer number (9035451).

Almost surely, 236120901 is an apocalyptic number.

It is an amenable number.

36120901 is a deficient number, since it is larger than the sum of its proper divisors (20903).

36120901 is a wasteful number, since it uses less digits than its factorization.

36120901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20902.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 36120901 is about 6010.0666385657. The cubic root of 36120901 is about 330.5619473388.

The spelling of 36120901 in words is "thirty-six million, one hundred twenty thousand, nine hundred one".

Divisors: 1 1901 19001 36120901