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23103415 = 5103113397
BaseRepresentation
bin101100000100…
…0011110110111
31121110202221001
41120020132313
521403302130
62143104131
7400242616
oct130103667
947422831
1023103415
111204aa35
1278a2047
134a2bb7a
1430d587d
1520656ca
hex16087b7

23103415 has 16 divisors (see below), whose sum is σ = 28312128. Its totient is φ = 18095616.

The previous prime is 23103407. The next prime is 23103419. The reversal of 23103415 is 51430132.

It is a cyclic number.

It is not a de Polignac number, because 23103415 - 23 = 23103407 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23103392 and 23103401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23103419) 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 15 ways as a sum of consecutive naturals, for example, 57997 + ... + 58393.

It is an arithmetic number, because the mean of its divisors is an integer number (1769508).

Almost surely, 223103415 is an apocalyptic number.

23103415 is a deficient number, since it is larger than the sum of its proper divisors (5208713).

23103415 is a wasteful number, since it uses less digits than its factorization.

23103415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 23103415 is about 4806.6011900302. The cubic root of 23103415 is about 284.8122904722.

Adding to 23103415 its reverse (51430132), we get a palindrome (74533547).

The spelling of 23103415 in words is "twenty-three million, one hundred three thousand, four hundred fifteen".

Divisors: 1 5 103 113 397 515 565 1985 11639 40891 44861 58195 204455 224305 4620683 23103415