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102134543 = 7127131877
BaseRepresentation
bin1100001011001…
…11001100001111
321010011222020212
412011213030033
5202121301133
614045033035
72350062230
oct605471417
9233158225
10102134543
115271a215
122a25577b
1318210254
14d7c9087
158e77148
hex616730f

102134543 has 16 divisors (see below), whose sum is σ = 118677504. Its totient is φ = 86093280.

The previous prime is 102134507. The next prime is 102134563. The reversal of 102134543 is 345431201.

It is not a de Polignac number, because 102134543 - 28 = 102134287 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 (102134563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116021 + ... + 116897.

It is an arithmetic number, because the mean of its divisors is an integer number (7417344).

Almost surely, 2102134543 is an apocalyptic number.

102134543 is a deficient number, since it is larger than the sum of its proper divisors (16542961).

102134543 is a wasteful number, since it uses less digits than its factorization.

102134543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1142.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 102134543 is about 10106.1636143494. The cubic root of 102134543 is about 467.4382169299.

Adding to 102134543 its reverse (345431201), we get a palindrome (447565744).

The spelling of 102134543 in words is "one hundred two million, one hundred thirty-four thousand, five hundred forty-three".

Divisors: 1 7 127 131 877 889 917 6139 16637 111379 114887 116459 779653 804209 14590649 102134543