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13950987 = 36177537
BaseRepresentation
bin110101001110…
…000000001011
3222020210011020
4311032000023
512032412422
61215003523
7226403301
oct65160013
928223136
1013950987
117969646
1248095a3
132b7602b
141bd2271
15135895c
hexd4e00b

13950987 has 8 divisors (see below), whose sum is σ = 18633936. Its totient is φ = 9284352.

The previous prime is 13950983. The next prime is 13950991. The reversal of 13950987 is 78905931.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13950983) and next prime (13950991).

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

It is not a de Polignac number, because 13950987 - 22 = 13950983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13950983) 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, 1918 + ... + 5619.

It is an arithmetic number, because the mean of its divisors is an integer number (2329242).

Almost surely, 213950987 is an apocalyptic number.

13950987 is a deficient number, since it is larger than the sum of its proper divisors (4682949).

13950987 is an equidigital number, since it uses as much as digits as its factorization.

13950987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8157.

The product of its (nonzero) digits is 68040, while the sum is 42.

The square root of 13950987 is about 3735.1020066392. The cubic root of 13950987 is about 240.7326396926.

The spelling of 13950987 in words is "thirteen million, nine hundred fifty thousand, nine hundred eighty-seven".

Divisors: 1 3 617 1851 7537 22611 4650329 13950987