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23790973 = 171399469
BaseRepresentation
bin101101011000…
…0010101111101
31122202201002011
41122300111331
522042302343
62205531221
7406135303
oct132602575
948681064
1023790973
111247a568
127b73b11
134c0cacb
143234273
15214e29d
hex16b057d

23790973 has 4 divisors (see below), whose sum is σ = 25190460. Its totient is φ = 22391488.

The previous prime is 23790971. The next prime is 23791013. The reversal of 23790973 is 37909732.

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 6335289 + 17455684 = 2517^2 + 4178^2 .

It is a cyclic number.

It is not a de Polignac number, because 23790973 - 21 = 23790971 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23790971) 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, 699718 + ... + 699751.

It is an arithmetic number, because the mean of its divisors is an integer number (6297615).

Almost surely, 223790973 is an apocalyptic number.

It is an amenable number.

23790973 is a deficient number, since it is larger than the sum of its proper divisors (1399487).

23790973 is a wasteful number, since it uses less digits than its factorization.

23790973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1399486.

The product of its (nonzero) digits is 71442, while the sum is 40.

The square root of 23790973 is about 4877.5991020173. The cubic root of 23790973 is about 287.6100569189.

The spelling of 23790973 in words is "twenty-three million, seven hundred ninety thousand, nine hundred seventy-three".

Divisors: 1 17 1399469 23790973