Search a number
-
+
223146001 = 1337463921
BaseRepresentation
bin11010100110011…
…11000000010001
3120112212222202201
431103033000101
5424111133001
634050443201
75346465301
oct1523170021
9515788681
10223146001
11104a61991
1262893501
13372cc670
14218c9601
15148cc501
hexd4cf011

223146001 has 8 divisors (see below), whose sum is σ = 246806504. Its totient is φ = 200413440.

The previous prime is 223145969. The next prime is 223146017. The reversal of 223146001 is 100641322.

It can be written as a sum of positive squares in 4 ways, for example, as 105987025 + 117158976 = 10295^2 + 10824^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 223146001 - 25 = 223145969 is a prime.

It is a super-3 number, since 3×2231460013 (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 223146001.

It is not an unprimeable number, because it can be changed into a prime (223146701) 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, 231480 + ... + 232441.

It is an arithmetic number, because the mean of its divisors is an integer number (30850813).

Almost surely, 2223146001 is an apocalyptic number.

223146001 is the 8625-th hex number.

It is an amenable number.

223146001 is a deficient number, since it is larger than the sum of its proper divisors (23660503).

223146001 is a wasteful number, since it uses less digits than its factorization.

223146001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463971.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 223146001 is about 14938.0721982457. The cubic root of 223146001 is about 606.5450126726.

Adding to 223146001 its reverse (100641322), we get a palindrome (323787323).

The spelling of 223146001 in words is "two hundred twenty-three million, one hundred forty-six thousand, one".

Divisors: 1 13 37 481 463921 6030973 17165077 223146001