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13550145101 = 82916345169
BaseRepresentation
bin11001001111010011…
…01100111001001101
31021222022222200122222
430213221230321031
5210222314120401
610120322345125
7656533222133
oct144751547115
937868880588
1013550145101
115823781629
122761abb1a5
13137c36324c
14927855753
155448c2c1b
hex327a6ce4d

13550145101 has 4 divisors (see below), whose sum is σ = 13566491100. Its totient is φ = 13533799104.

The previous prime is 13550145061. The next prime is 13550145109. The reversal of 13550145101 is 10154105531.

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 6028746025 + 7521399076 = 77645^2 + 86726^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13550145101 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 (13550145109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8171756 + ... + 8173413.

It is an arithmetic number, because the mean of its divisors is an integer number (3391622775).

Almost surely, 213550145101 is an apocalyptic number.

It is an amenable number.

13550145101 is a deficient number, since it is larger than the sum of its proper divisors (16345999).

13550145101 is an equidigital number, since it uses as much as digits as its factorization.

13550145101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16345998.

The product of its (nonzero) digits is 1500, while the sum is 26.

The spelling of 13550145101 in words is "thirteen billion, five hundred fifty million, one hundred forty-five thousand, one hundred one".

Divisors: 1 829 16345169 13550145101