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23838929 = 1012331013
BaseRepresentation
bin101101011110…
…0000011010001
31122212010212022
41122330003101
522100321204
62210541225
7406425152
oct132740321
948763768
1023838929
11125025a4
127b97815
134c2889a
143247929
15215d5be
hex16bc0d1

23838929 has 8 divisors (see below), whose sum is σ = 24202152. Its totient is φ = 23478400.

The previous prime is 23838887. The next prime is 23838931. The reversal of 23838929 is 92983832.

It can be written as a sum of positive squares in 4 ways, for example, as 577600 + 23261329 = 760^2 + 4823^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-23838929 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 23838929.

It is not an unprimeable number, because it can be changed into a prime (23834929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23027 + ... + 24039.

It is an arithmetic number, because the mean of its divisors is an integer number (3025269).

Almost surely, 223838929 is an apocalyptic number.

It is an amenable number.

23838929 is a deficient number, since it is larger than the sum of its proper divisors (363223).

23838929 is a wasteful number, since it uses less digits than its factorization.

23838929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1347.

The product of its digits is 186624, while the sum is 44.

The square root of 23838929 is about 4882.5125703883. The cubic root of 23838929 is about 287.8031745758.

The spelling of 23838929 in words is "twenty-three million, eight hundred thirty-eight thousand, nine hundred twenty-nine".

Divisors: 1 101 233 1013 23533 102313 236029 23838929