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13951008 = 253367241
BaseRepresentation
bin110101001110…
…000000100000
3222020210012000
4311032000200
512032413013
61215004000
7226403331
oct65160040
928223160
1013951008
117969665
124809600
132b76046
141bd2288
151358973
hexd4e020

13951008 has 96 divisors (see below), whose sum is σ = 41469120. Its totient is φ = 4561920.

The previous prime is 13950991. The next prime is 13951009. The reversal of 13951008 is 80015931.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13951009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57768 + ... + 58008.

It is an arithmetic number, because the mean of its divisors is an integer number (431970).

Almost surely, 213951008 is an apocalyptic number.

13951008 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13951008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20734560).

13951008 is an abundant number, since it is smaller than the sum of its proper divisors (27518112).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13951008 is a wasteful number, since it uses less digits than its factorization.

13951008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327 (or 313 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 13951008 is about 3735.1048178063. The cubic root of 13951008 is about 240.7327604818.

Adding to 13951008 its reverse (80015931), we get a palindrome (93966939).

The spelling of 13951008 in words is "thirteen million, nine hundred fifty-one thousand, eight".