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1914401 = 11811621
BaseRepresentation
bin111010011011000100001
310121021001202
413103120201
5442230101
6105010545
722162226
oct7233041
93537052
101914401
111098355
12783a55
135204a8
1437b94d
1527c36b
hex1d3621

1914401 has 4 divisors (see below), whose sum is σ = 1917204. Its totient is φ = 1911600.

The previous prime is 1914389. The next prime is 1914427. The reversal of 1914401 is 1044191.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1628176 + 286225 = 1276^2 + 535^2 .

It is a cyclic number.

It is not a de Polignac number, because 1914401 - 210 = 1913377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1914481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 371 + ... + 1991.

It is an arithmetic number, because the mean of its divisors is an integer number (479301).

21914401 is an apocalyptic number.

It is an amenable number.

1914401 is a deficient number, since it is larger than the sum of its proper divisors (2803).

1914401 is a wasteful number, since it uses less digits than its factorization.

1914401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2802.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 1914401 is about 1383.6188058855. The cubic root of 1914401 is about 124.1683673676.

Adding to 1914401 its reverse (1044191), we get a palindrome (2958592).

The spelling of 1914401 in words is "one million, nine hundred fourteen thousand, four hundred one".

Divisors: 1 1181 1621 1914401