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13671907 = 372231657
BaseRepresentation
bin110100001001…
…110111100011
3221201121022221
4310021313203
512000000112
61205011511
7224131534
oct64116743
927647287
1013671907
1177989a7
1246b3b97
132aa8cb2
141b5c68b
151300e07
hexd09de3

13671907 has 8 divisors (see below), whose sum is σ = 14112896. Its totient is φ = 13234752.

The previous prime is 13671883. The next prime is 13671919. The reversal of 13671907 is 70917631.

It is a happy number.

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

It is not a de Polignac number, because 13671907 - 215 = 13639139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13671947) 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, 7423 + ... + 9079.

It is an arithmetic number, because the mean of its divisors is an integer number (1764112).

Almost surely, 213671907 is an apocalyptic number.

13671907 is a deficient number, since it is larger than the sum of its proper divisors (440989).

13671907 is a wasteful number, since it uses less digits than its factorization.

13671907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1917.

The product of its (nonzero) digits is 7938, while the sum is 34.

The square root of 13671907 is about 3697.5541916245. The cubic root of 13671907 is about 239.1165844027.

The spelling of 13671907 in words is "thirteen million, six hundred seventy-one thousand, nine hundred seven".

Divisors: 1 37 223 1657 8251 61309 369511 13671907