Search a number
-
+
23690141 is a prime number
BaseRepresentation
bin101101001011…
…1101110011101
31122120120202122
41122113232131
522031041031
62203432325
7405235316
oct132275635
948516678
1023690141
1112410832
127b256a5
134ba5c47
14320960d
15212e47b
hex1697b9d

23690141 has 2 divisors, whose sum is σ = 23690142. Its totient is φ = 23690140.

The previous prime is 23690137. The next prime is 23690167. The reversal of 23690141 is 14109632.

It is an a-pointer prime, because the next prime (23690167) can be obtained adding 23690141 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21576025 + 2114116 = 4645^2 + 1454^2 .

It is a cyclic number.

It is not a de Polignac number, because 23690141 - 22 = 23690137 is a prime.

It is a super-2 number, since 2×236901412 = 1122445561199762, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 23690141.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23690041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11845070 + 11845071.

It is an arithmetic number, because the mean of its divisors is an integer number (11845071).

Almost surely, 223690141 is an apocalyptic number.

It is an amenable number.

23690141 is a deficient number, since it is larger than the sum of its proper divisors (1).

23690141 is an equidigital number, since it uses as much as digits as its factorization.

23690141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 23690141 is about 4867.2518940363. The cubic root of 23690141 is about 287.2031607945.

Adding to 23690141 its reverse (14109632), we get a palindrome (37799773).

The spelling of 23690141 in words is "twenty-three million, six hundred ninety thousand, one hundred forty-one".