Search a number
-
+
23404303231 = 295383183461
BaseRepresentation
bin10101110011000000…
…010101001101111111
32020102002022210100121
4111303000111031333
5340413000200411
614430215235411
71455660203131
oct256300251577
966362283317
1023404303231
119a20134471
124652078b67
13228ca7934a
1411c0493051
1591ea73571
hex57301537f

23404303231 has 16 divisors (see below), whose sum is σ = 24965508960. Its totient is φ = 21903656320.

The previous prime is 23404303207. The next prime is 23404303243. The reversal of 23404303231 is 13230340432.

It is a cyclic number.

It is not a de Polignac number, because 23404303231 - 213 = 23404295039 is a prime.

It is a super-2 number, since 2×234043032312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23404303196 and 23404303205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23404303831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35841 + ... + 219301.

It is an arithmetic number, because the mean of its divisors is an integer number (1560344310).

Almost surely, 223404303231 is an apocalyptic number.

23404303231 is a deficient number, since it is larger than the sum of its proper divisors (1561205729).

23404303231 is a wasteful number, since it uses less digits than its factorization.

23404303231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183626.

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 23404303231 its reverse (13230340432), we get a palindrome (36634643663).

The spelling of 23404303231 in words is "twenty-three billion, four hundred four million, three hundred three thousand, two hundred thirty-one".

Divisors: 1 29 53 83 1537 2407 4399 127571 183461 5320369 9723433 15227263 281979557 441590627 807044939 23404303231