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105144361 = 722216763
BaseRepresentation
bin1100100010001…
…10000000101001
321022211212221121
412101012000221
5203404104421
614233335241
72414466220
oct621060051
9238755847
10105144361
1154395573
122b267521
1318a251ca
14dd6dcb7
15936dd41
hex6446029

105144361 has 8 divisors (see below), whose sum is σ = 120236864. Its totient is φ = 90069840.

The previous prime is 105144341. The next prime is 105144367. The reversal of 105144361 is 163441501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 105144361 - 29 = 105143849 is a prime.

It is a super-2 number, since 2×1051443612 = 22110673300196642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105144367) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12166 + ... + 18928.

It is an arithmetic number, because the mean of its divisors is an integer number (15029608).

Almost surely, 2105144361 is an apocalyptic number.

It is an amenable number.

105144361 is a deficient number, since it is larger than the sum of its proper divisors (15092503).

105144361 is an equidigital number, since it uses as much as digits as its factorization.

105144361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8991.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 105144361 is about 10253.9924419711. The cubic root of 105144361 is about 471.9855056954.

Adding to 105144361 its reverse (163441501), we get a palindrome (268585862).

The spelling of 105144361 in words is "one hundred five million, one hundred forty-four thousand, three hundred sixty-one".

Divisors: 1 7 2221 6763 15547 47341 15020623 105144361