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1420495 = 51272237
BaseRepresentation
bin101011010110011001111
32200011112221
411122303033
5330423440
650240211
715034246
oct5326317
92604487
101420495
1189026a
12586067
133a973b
1428d95d
151d0d4a
hex15accf

1420495 has 8 divisors (see below), whose sum is σ = 1718784. Its totient is φ = 1126944.

The previous prime is 1420493. The next prime is 1420501. The reversal of 1420495 is 5940241.

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

It is a cyclic number.

It is not a de Polignac number, because 1420495 - 21 = 1420493 is a prime.

It is a Duffinian number.

1420495 is a lucky number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 484 + ... + 1753.

It is an arithmetic number, because the mean of its divisors is an integer number (214848).

21420495 is an apocalyptic number.

1420495 is a deficient number, since it is larger than the sum of its proper divisors (298289).

1420495 is a wasteful number, since it uses less digits than its factorization.

1420495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2369.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 1420495 is about 1191.8452080702. The cubic root of 1420495 is about 112.4121454014.

The spelling of 1420495 in words is "one million, four hundred twenty thousand, four hundred ninety-five".

Divisors: 1 5 127 635 2237 11185 284099 1420495