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101442211 = 137803247
BaseRepresentation
bin1100000101111…
…10001010100011
321001212210112221
412002332022203
5201432122321
614022131511
72341146613
oct602761243
9231783487
10101442211
1152297042
1229b80b97
131802a0a0
14d688a43
158d8be41
hex60be2a3

101442211 has 4 divisors (see below), whose sum is σ = 109245472. Its totient is φ = 93638952.

The previous prime is 101442161. The next prime is 101442217. The reversal of 101442211 is 112244101.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 112244101 = 412737661.

It is a cyclic number.

It is not a de Polignac number, because 101442211 - 29 = 101441699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101442217) 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 3 ways as a sum of consecutive naturals, for example, 3901611 + ... + 3901636.

It is an arithmetic number, because the mean of its divisors is an integer number (27311368).

Almost surely, 2101442211 is an apocalyptic number.

101442211 is a deficient number, since it is larger than the sum of its proper divisors (7803261).

101442211 is an equidigital number, since it uses as much as digits as its factorization.

101442211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7803260.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 101442211 is about 10071.8524115477. The cubic root of 101442211 is about 466.3796248971.

Adding to 101442211 its reverse (112244101), we get a palindrome (213686312).

The spelling of 101442211 in words is "one hundred one million, four hundred forty-two thousand, two hundred eleven".

Divisors: 1 13 7803247 101442211