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23478973 = 714922511
BaseRepresentation
bin101100110010…
…0001010111101
31122011212002121
41121210022331
522002311343
62155122541
7403365550
oct131441275
948155077
1023478973
1112287111
127a43451
134b30aab
143192697
1520dbaed
hex16642bd

23478973 has 8 divisors (see below), whose sum is σ = 27014400. Its totient is φ = 19988880.

The previous prime is 23478967. The next prime is 23479007. The reversal of 23478973 is 37987432.

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 23478973 - 25 = 23478941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23478373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10213 + ... + 12298.

It is an arithmetic number, because the mean of its divisors is an integer number (3376800).

Almost surely, 223478973 is an apocalyptic number.

It is an amenable number.

23478973 is a deficient number, since it is larger than the sum of its proper divisors (3535427).

23478973 is a wasteful number, since it uses less digits than its factorization.

23478973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22667.

The product of its digits is 254016, while the sum is 43.

The square root of 23478973 is about 4845.5106026094. The cubic root of 23478973 is about 286.3472602254.

The spelling of 23478973 in words is "twenty-three million, four hundred seventy-eight thousand, nine hundred seventy-three".

Divisors: 1 7 149 1043 22511 157577 3354139 23478973