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23670901 = 113209477
BaseRepresentation
bin101101001001…
…1000001110101
31122112121101001
41122103001311
522024432101
62203203301
7405125242
oct132230165
948477331
1023670901
11123a8331
127b16531
134b9a267
1432025c9
152128901
hex1693075

23670901 has 4 divisors (see below), whose sum is σ = 23880492. Its totient is φ = 23461312.

The previous prime is 23670893. The next prime is 23670917. The reversal of 23670901 is 10907632.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5616900 + 18054001 = 2370^2 + 4249^2 .

It is a cyclic number.

It is not a de Polignac number, because 23670901 - 23 = 23670893 is a prime.

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

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 23670901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23670961) 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, 104626 + ... + 104851.

It is an arithmetic number, because the mean of its divisors is an integer number (5970123).

Almost surely, 223670901 is an apocalyptic number.

It is an amenable number.

23670901 is a deficient number, since it is larger than the sum of its proper divisors (209591).

23670901 is a wasteful number, since it uses less digits than its factorization.

23670901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209590.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 23670901 is about 4865.2750179204. The cubic root of 23670901 is about 287.1253888440.

The spelling of 23670901 in words is "twenty-three million, six hundred seventy thousand, nine hundred one".

Divisors: 1 113 209477 23670901