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102253543 = 7213915013
BaseRepresentation
bin1100001100001…
…00001111100111
321010102000111021
412012010033213
5202134103133
614051352011
72351066200
oct606041747
9233360437
10102253543
11527a0667
122a2b2607
1318252472
14d81a5a7
158e9c52d
hex61843e7

102253543 has 12 divisors (see below), whose sum is σ = 119811720. Its totient is φ = 87009552.

The previous prime is 102253537. The next prime is 102253577. The reversal of 102253543 is 345352201.

It is a de Polignac number, because none of the positive numbers 2k-102253543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102253243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 696 + ... + 14317.

It is an arithmetic number, because the mean of its divisors is an integer number (9984310).

Almost surely, 2102253543 is an apocalyptic number.

102253543 is a deficient number, since it is larger than the sum of its proper divisors (17558177).

102253543 is a wasteful number, since it uses less digits than its factorization.

102253543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15166 (or 15159 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 102253543 is about 10112.0493966357. The cubic root of 102253543 is about 467.6196885348.

The spelling of 102253543 in words is "one hundred two million, two hundred fifty-three thousand, five hundred forty-three".

Divisors: 1 7 49 139 973 6811 15013 105091 735637 2086807 14607649 102253543