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101272093 = 137790161
BaseRepresentation
bin1100000100101…
…00101000011101
321001120011012021
412002110220131
5201411201333
614014340141
72336540626
oct602245035
9231504167
10101272093
115219024a
1229aba651
1317c9a820
14d642a4d
158d5682d
hex6094a1d

101272093 has 4 divisors (see below), whose sum is σ = 109062268. Its totient is φ = 93481920.

The previous prime is 101272051. The next prime is 101272103. The reversal of 101272093 is 390272101.

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 6365529 + 94906564 = 2523^2 + 9742^2 .

It is a cyclic number.

It is not a de Polignac number, because 101272093 - 29 = 101271581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101252093) 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, 3895068 + ... + 3895093.

It is an arithmetic number, because the mean of its divisors is an integer number (27265567).

Almost surely, 2101272093 is an apocalyptic number.

101272093 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

101272093 is a deficient number, since it is larger than the sum of its proper divisors (7790175).

101272093 is an equidigital number, since it uses as much as digits as its factorization.

101272093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7790174.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 101272093 is about 10063.4036488655. The cubic root of 101272093 is about 466.1187737179.

The spelling of 101272093 in words is "one hundred one million, two hundred seventy-two thousand, ninety-three".

Divisors: 1 13 7790161 101272093