Search a number
-
+
23690473 = 191246867
BaseRepresentation
bin101101001011…
…1110011101001
31122120121012221
41122113303221
522031043343
62203434041
7405236302
oct132276351
948517187
1023690473
1112411004
127b25921
134ba6141
1432097a9
15212e5ed
hex1697ce9

23690473 has 4 divisors (see below), whose sum is σ = 24937360. Its totient is φ = 22443588.

The previous prime is 23690467. The next prime is 23690519. The reversal of 23690473 is 37409632.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23690473 - 29 = 23689961 is a prime.

It is a super-2 number, since 2×236904732 = 1122477021927458, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23690573) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 623415 + ... + 623452.

It is an arithmetic number, because the mean of its divisors is an integer number (6234340).

Almost surely, 223690473 is an apocalyptic number.

It is an amenable number.

23690473 is a deficient number, since it is larger than the sum of its proper divisors (1246887).

23690473 is a wasteful number, since it uses less digits than its factorization.

23690473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1246886.

The product of its (nonzero) digits is 27216, while the sum is 34.

The square root of 23690473 is about 4867.2859994046. The cubic root of 23690473 is about 287.2045024356.

It can be divided in two parts, 236 and 90473, that added together give a palindrome (90709).

The spelling of 23690473 in words is "twenty-three million, six hundred ninety thousand, four hundred seventy-three".

Divisors: 1 19 1246867 23690473