Search a number
-
+
1330923677 = 1832972613
BaseRepresentation
bin100111101010100…
…0100100010011101
310102202100221001112
41033111010202131
510211204024202
6340022151405
744660443646
oct11725044235
93382327045
101330923677
116232a9726
12311882565
13182974505
14c8a906cd
157bc9cb52
hex4f54489d

1330923677 has 4 divisors (see below), whose sum is σ = 1331014620. Its totient is φ = 1330832736.

The previous prime is 1330923653. The next prime is 1330923679. The reversal of 1330923677 is 7763290331.

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, and also an emirpimes, since its reverse is a distinct semiprime: 7763290331 = 73910505129.

It can be written as a sum of positive squares in 2 ways, for example, as 868716676 + 462207001 = 29474^2 + 21499^2 .

It is a cyclic number.

It is not a de Polignac number, because 1330923677 - 214 = 1330907293 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 (1330923679) 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, 17978 + ... + 54635.

It is an arithmetic number, because the mean of its divisors is an integer number (332753655).

Almost surely, 21330923677 is an apocalyptic number.

It is an amenable number.

1330923677 is a deficient number, since it is larger than the sum of its proper divisors (90943).

1330923677 is an equidigital number, since it uses as much as digits as its factorization.

1330923677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90942.

The product of its (nonzero) digits is 142884, while the sum is 41.

The square root of 1330923677 is about 36481.8266675341. The cubic root of 1330923677 is about 1099.9789739783.

The spelling of 1330923677 in words is "one billion, three hundred thirty million, nine hundred twenty-three thousand, six hundred seventy-seven".

Divisors: 1 18329 72613 1330923677