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13923807 = 310334493
BaseRepresentation
bin110101000111…
…010111011111
3222012101212120
4311013113133
512031030212
61214234023
7226231122
oct65072737
928171776
1013923807
117950187
1247b5913
132b66851
141bc63b9
15135088c
hexd475df

13923807 has 8 divisors (see below), whose sum is σ = 18587184. Its totient is φ = 9271488.

The previous prime is 13923779. The next prime is 13923821. The reversal of 13923807 is 70832931.

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

It is not a de Polignac number, because 13923807 - 214 = 13907423 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13923307) 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, 853 + ... + 5345.

It is an arithmetic number, because the mean of its divisors is an integer number (2323398).

Almost surely, 213923807 is an apocalyptic number.

13923807 is a deficient number, since it is larger than the sum of its proper divisors (4663377).

13923807 is a wasteful number, since it uses less digits than its factorization.

13923807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5529.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 13923807 is about 3731.4617779096. The cubic root of 13923807 is about 240.5762023271.

The spelling of 13923807 in words is "thirteen million, nine hundred twenty-three thousand, eight hundred seven".

Divisors: 1 3 1033 3099 4493 13479 4641269 13923807