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102542333 = 531934761
BaseRepresentation
bin1100001110010…
…10101111111101
321010221200122012
412013022233331
5202222323313
614101501005
72353411145
oct607125775
9233850565
10102542333
1152978633
122a411765
1318323a4a
14d893925
159007da8
hex61cabfd

102542333 has 4 divisors (see below), whose sum is σ = 104477148. Its totient is φ = 100607520.

The previous prime is 102542311. The next prime is 102542357. The reversal of 102542333 is 333245201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 333245201 = 1991674599.

It can be written as a sum of positive squares in 2 ways, for example, as 61042969 + 41499364 = 7813^2 + 6442^2 .

It is a cyclic number.

It is not a de Polignac number, because 102542333 - 26 = 102542269 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102542299 and 102542308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102542393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 967328 + ... + 967433.

It is an arithmetic number, because the mean of its divisors is an integer number (26119287).

Almost surely, 2102542333 is an apocalyptic number.

It is an amenable number.

102542333 is a deficient number, since it is larger than the sum of its proper divisors (1934815).

102542333 is an equidigital number, since it uses as much as digits as its factorization.

102542333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1934814.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 102542333 is about 10126.3188276886. The cubic root of 102542333 is about 468.0595003732.

Adding to 102542333 its reverse (333245201), we get a palindrome (435787534).

The spelling of 102542333 in words is "one hundred two million, five hundred forty-two thousand, three hundred thirty-three".

Divisors: 1 53 1934761 102542333