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1418401 = 2515651
BaseRepresentation
bin101011010010010100001
32200001200101
411122102201
5330342101
650222401
715025165
oct5322241
92601611
101418401
11889736
12584a01
133a87ba
1428cca5
151d0401
hex15a4a1

1418401 has 4 divisors (see below), whose sum is σ = 1424304. Its totient is φ = 1412500.

The previous prime is 1418399. The next prime is 1418423. The reversal of 1418401 is 1048141.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1048141 = 3133811.

It is a cyclic number.

It is not a de Polignac number, because 1418401 - 21 = 1418399 is a prime.

It is a super-2 number, since 2×14184012 = 4023722793602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1418491) 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, 2575 + ... + 3076.

It is an arithmetic number, because the mean of its divisors is an integer number (356076).

21418401 is an apocalyptic number.

It is an amenable number.

1418401 is a deficient number, since it is larger than the sum of its proper divisors (5903).

1418401 is an equidigital number, since it uses as much as digits as its factorization.

1418401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5902.

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 1418401 is about 1190.9664143039. The cubic root of 1418401 is about 112.3568813811.

The spelling of 1418401 in words is "one million, four hundred eighteen thousand, four hundred one".

Divisors: 1 251 5651 1418401