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14618881 is a prime number
BaseRepresentation
bin110111110001…
…000100000001
31000111201100001
4313301010001
512220301011
61241200001
7235154434
oct67610401
930451301
1014618881
118285422
124a90001
13304b034
141d2781b
15143b7c1
hexdf1101

14618881 has 2 divisors, whose sum is σ = 14618882. Its totient is φ = 14618880.

The previous prime is 14618867. The next prime is 14618897. The reversal of 14618881 is 18881641.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12138256 + 2480625 = 3484^2 + 1575^2 .

It is an emirp because it is prime and its reverse (18881641) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 14618881 - 219 = 14094593 is a prime.

It is a super-2 number, since 2×146188812 = 427423363384322, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 14618881.

It is not a weakly prime, because it can be changed into another prime (14618281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7309440 + 7309441.

It is an arithmetic number, because the mean of its divisors is an integer number (7309441).

Almost surely, 214618881 is an apocalyptic number.

It is an amenable number.

14618881 is a deficient number, since it is larger than the sum of its proper divisors (1).

14618881 is an equidigital number, since it uses as much as digits as its factorization.

14618881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12288, while the sum is 37.

The square root of 14618881 is about 3823.4645284088. The cubic root of 14618881 is about 244.5145517384.

The spelling of 14618881 in words is "fourteen million, six hundred eighteen thousand, eight hundred eighty-one".