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10142101 = 10398467
BaseRepresentation
bin100110101100…
…000110010101
3201002021100101
4212230012111
510044021401
61001214101
7152130544
oct46540625
921067311
1010142101
1157a7a02
123491331
132141458
1414c015b
15d55101
hex9ac195

10142101 has 4 divisors (see below), whose sum is σ = 10240672. Its totient is φ = 10043532.

The previous prime is 10142087. The next prime is 10142113. The reversal of 10142101 is 10124101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10124101 = 13778777.

It is a cyclic number.

It is not a de Polignac number, because 10142101 - 213 = 10133909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10142131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49131 + ... + 49336.

It is an arithmetic number, because the mean of its divisors is an integer number (2560168).

Almost surely, 210142101 is an apocalyptic number.

It is an amenable number.

10142101 is a deficient number, since it is larger than the sum of its proper divisors (98571).

10142101 is an equidigital number, since it uses as much as digits as its factorization.

10142101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98570.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 10142101 is about 3184.6665445538. Note that the first 3 decimals coincide. The cubic root of 10142101 is about 216.4591641251.

Adding to 10142101 its reverse (10124101), we get a palindrome (20266202).

The spelling of 10142101 in words is "ten million, one hundred forty-two thousand, one hundred one".

Divisors: 1 103 98467 10142101