Search a number
-
+
1077949 = 5212069
BaseRepresentation
bin100000111001010111101
32000202200001
410013022331
5233443244
635034301
712106465
oct4071275
92022601
101077949
11676974
1243b991
132b9852
14200ba5
151645d4
hex1072bd

1077949 has 4 divisors (see below), whose sum is σ = 1080540. Its totient is φ = 1075360.

The previous prime is 1077943. The next prime is 1077971. The reversal of 1077949 is 9497701.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9497701 = 19499879.

It can be written as a sum of positive squares in 2 ways, for example, as 235225 + 842724 = 485^2 + 918^2 .

It is a cyclic number.

It is not a de Polignac number, because 1077949 - 25 = 1077917 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 (1077943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 514 + ... + 1555.

It is an arithmetic number, because the mean of its divisors is an integer number (270135).

21077949 is an apocalyptic number.

It is an amenable number.

1077949 is a deficient number, since it is larger than the sum of its proper divisors (2591).

1077949 is an equidigital number, since it uses as much as digits as its factorization.

1077949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2590.

The product of its (nonzero) digits is 15876, while the sum is 37.

The square root of 1077949 is about 1038.2432277651. The cubic root of 1077949 is about 102.5335682241.

The spelling of 1077949 in words is "one million, seventy-seven thousand, nine hundred forty-nine".

Divisors: 1 521 2069 1077949