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13923123 = 331149711
BaseRepresentation
bin110101000111…
…001100110011
3222012100221020
4311013030303
512031014443
61214230523
7226226124
oct65071463
928170836
1013923123
11794a715
1247b5443
132b66446
141bc604b
151350583
hexd47333

13923123 has 8 divisors (see below), whose sum is σ = 19163136. Its totient is φ = 8982600.

The previous prime is 13923113. The next prime is 13923127. The reversal of 13923123 is 32132931.

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

It is not a de Polignac number, because 13923123 - 26 = 13923059 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13923093 and 13923102.

It is not an unprimeable number, because it can be changed into a prime (13923127) 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, 74763 + ... + 74948.

It is an arithmetic number, because the mean of its divisors is an integer number (2395392).

Almost surely, 213923123 is an apocalyptic number.

13923123 is a deficient number, since it is larger than the sum of its proper divisors (5240013).

13923123 is a wasteful number, since it uses less digits than its factorization.

13923123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149745.

The product of its digits is 972, while the sum is 24.

The square root of 13923123 is about 3731.3701236945. The cubic root of 13923123 is about 240.5722628677.

The spelling of 13923123 in words is "thirteen million, nine hundred twenty-three thousand, one hundred twenty-three".

Divisors: 1 3 31 93 149711 449133 4641041 13923123