Search a number
-
+
13764379 = 19724441
BaseRepresentation
bin110100100000…
…011100011011
3221220022011211
4310200130123
512010430004
61211003551
7224665246
oct64403433
927808154
1013764379
117851422
1247395b7
132b0c105
141b8425d
15131d504
hexd2071b

13764379 has 4 divisors (see below), whose sum is σ = 14488840. Its totient is φ = 13039920.

The previous prime is 13764371. The next prime is 13764389. The reversal of 13764379 is 97346731.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13764379 - 23 = 13764371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13764371) by changing a digit.

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

It is an upside-down number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 362202 + ... + 362239.

It is an arithmetic number, because the mean of its divisors is an integer number (3622210).

Almost surely, 213764379 is an apocalyptic number.

13764379 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

13764379 is a deficient number, since it is larger than the sum of its proper divisors (724461).

13764379 is an equidigital number, since it uses as much as digits as its factorization.

13764379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 724460.

The product of its digits is 95256, while the sum is 40.

The square root of 13764379 is about 3710.0376008876. The cubic root of 13764379 is about 239.6544738522.

It can be divided in two parts, 137 and 64379, that added together give a square (64516 = 2542).

The spelling of 13764379 in words is "thirteen million, seven hundred sixty-four thousand, three hundred seventy-nine".

Divisors: 1 19 724441 13764379