Search a number
-
+
1428077 = 7316581
BaseRepresentation
bin101011100101001101101
32200112221202
411130221231
5331144302
650335245
715065330
oct5345155
92615852
101428077
11895a32
1258a525
133b0021
14292617
151d3202
hex15ca6d

1428077 has 8 divisors (see below), whose sum is σ = 1684992. Its totient is φ = 1184400.

The previous prime is 1428041. The next prime is 1428079. The reversal of 1428077 is 7708241.

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

It is not a de Polignac number, because 1428077 - 26 = 1428013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1428079) 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, 3074 + ... + 3507.

It is an arithmetic number, because the mean of its divisors is an integer number (210624).

21428077 is an apocalyptic number.

It is an amenable number.

1428077 is a deficient number, since it is larger than the sum of its proper divisors (256915).

1428077 is an equidigital number, since it uses as much as digits as its factorization.

1428077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6619.

The product of its (nonzero) digits is 3136, while the sum is 29.

The square root of 1428077 is about 1195.0217571241. The cubic root of 1428077 is about 112.6117933987.

The spelling of 1428077 in words is "one million, four hundred twenty-eight thousand, seventy-seven".

Divisors: 1 7 31 217 6581 46067 204011 1428077