Search a number
-
+
23678947 = 314191823
BaseRepresentation
bin101101001010…
…0111111100011
31122120000102001
41122110333203
522030211242
62203304431
7405160555
oct132247743
948500361
1023678947
1112403386
127b1b117
134ba0b16
1432054d5
15212aeb7
hex1694fe3

23678947 has 8 divisors (see below), whose sum is σ = 24514560. Its totient is φ = 22847880.

The previous prime is 23678923. The next prime is 23678951. The reversal of 23678947 is 74987632.

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 23678947 - 215 = 23646179 is a prime.

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

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23678897 and 23678906.

It is not an unprimeable number, because it can be changed into a prime (23678917) 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, 12078 + ... + 13900.

It is an arithmetic number, because the mean of its divisors is an integer number (3064320).

Almost surely, 223678947 is an apocalyptic number.

23678947 is a deficient number, since it is larger than the sum of its proper divisors (835613).

23678947 is a wasteful number, since it uses less digits than its factorization.

23678947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2273.

The product of its digits is 508032, while the sum is 46.

The square root of 23678947 is about 4866.1018279522. The cubic root of 23678947 is about 287.1579175195.

The spelling of 23678947 in words is "twenty-three million, six hundred seventy-eight thousand, nine hundred forty-seven".

Divisors: 1 31 419 1823 12989 56513 763837 23678947