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101538572053 = 521194891693
BaseRepresentation
bin101111010010000101…
…0111010011100010101
3100201002101201220022211
41132210022322130111
53130422333301203
6114351323553421
710223135423212
oct1364412723425
9321071656284
10101538572053
113a075971056
121781908b871
1397624b85c9
144cb3524b09
152994352c6d
hex17a42ba715

101538572053 has 4 divisors (see below), whose sum is σ = 101733464268. Its totient is φ = 101343679840.

The previous prime is 101538572027. The next prime is 101538572081. The reversal of 101538572053 is 350275835101.

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 45513102244 + 56025469809 = 213338^2 + 236697^2 .

It is a cyclic number.

It is not a de Polignac number, because 101538572053 - 25 = 101538572021 is a prime.

It is a super-2 number, since 2×1015385720532 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101538571997 and 101538572015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101530572053) 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, 97445326 + ... + 97446367.

It is an arithmetic number, because the mean of its divisors is an integer number (25433366067).

Almost surely, 2101538572053 is an apocalyptic number.

It is an amenable number.

101538572053 is a deficient number, since it is larger than the sum of its proper divisors (194892215).

101538572053 is an equidigital number, since it uses as much as digits as its factorization.

101538572053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194892214.

The product of its (nonzero) digits is 126000, while the sum is 40.

The spelling of 101538572053 in words is "one hundred one billion, five hundred thirty-eight million, five hundred seventy-two thousand, fifty-three".

Divisors: 1 521 194891693 101538572053