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23881073 = 176123029
BaseRepresentation
bin101101100011…
…0010101110001
31122221021200012
41123012111301
522103143243
62211504305
7406662056
oct133062561
948837605
1023881073
1112531227
127bb8095
134c41b18
14325902d
15216ad18
hex16c6571

23881073 has 8 divisors (see below), whose sum is σ = 25701480. Its totient is φ = 22106880.

The previous prime is 23881069. The next prime is 23881127. The reversal of 23881073 is 37018832.

It can be written as a sum of positive squares in 4 ways, for example, as 5071504 + 18809569 = 2252^2 + 4337^2 .

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 23881073 - 22 = 23881069 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23881373) 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, 10478 + ... + 12551.

It is an arithmetic number, because the mean of its divisors is an integer number (3212685).

Almost surely, 223881073 is an apocalyptic number.

It is an amenable number.

23881073 is a deficient number, since it is larger than the sum of its proper divisors (1820407).

23881073 is a wasteful number, since it uses less digits than its factorization.

23881073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23107.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 23881073 is about 4886.8264753314. The cubic root of 23881073 is about 287.9726737512.

The spelling of 23881073 in words is "twenty-three million, eight hundred eighty-one thousand, seventy-three".

Divisors: 1 17 61 1037 23029 391493 1404769 23881073