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23816401 = 723115679
BaseRepresentation
bin101101011011…
…0100011010001
31122210222221221
41122312203101
522044111101
62210245041
7406302400
oct132664321
948728857
1023816401
1112497684
127b86781
134c1b55b
14323d637
152156aa1
hex16b68d1

23816401 has 12 divisors (see below), whose sum is σ = 28600320. Its totient is φ = 19754280.

The previous prime is 23816369. The next prime is 23816407. The reversal of 23816401 is 10461832.

It is not a de Polignac number, because 23816401 - 25 = 23816369 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23816407) 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 11 ways as a sum of consecutive naturals, for example, 6321 + ... + 9358.

It is an arithmetic number, because the mean of its divisors is an integer number (2383360).

Almost surely, 223816401 is an apocalyptic number.

It is an amenable number.

23816401 is a deficient number, since it is larger than the sum of its proper divisors (4783919).

23816401 is a wasteful number, since it uses less digits than its factorization.

23816401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15724 (or 15717 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 23816401 is about 4880.2050161853. The cubic root of 23816401 is about 287.7124871495.

The spelling of 23816401 in words is "twenty-three million, eight hundred sixteen thousand, four hundred one".

Divisors: 1 7 31 49 217 1519 15679 109753 486049 768271 3402343 23816401