Search a number
-
+
13373149 = 46129009
BaseRepresentation
bin110011000000…
…111011011101
3221011102111211
4303000323131
511410420044
61154344421
7221445526
oct63007335
927142454
1013373149
117604499
12458b111
132a0300a
141ac184d
151292634
hexcc0edd

13373149 has 4 divisors (see below), whose sum is σ = 13402620. Its totient is φ = 13343680.

The previous prime is 13373141. The next prime is 13373161. The reversal of 13373149 is 94137331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94137331 = 510718433.

It can be written as a sum of positive squares in 2 ways, for example, as 2856100 + 10517049 = 1690^2 + 3243^2 .

It is a cyclic number.

It is not a de Polignac number, because 13373149 - 23 = 13373141 is a prime.

It is a super-2 number, since 2×133731492 = 357682228352402, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13373149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13373141) 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 3 ways as a sum of consecutive naturals, for example, 14044 + ... + 14965.

It is an arithmetic number, because the mean of its divisors is an integer number (3350655).

Almost surely, 213373149 is an apocalyptic number.

It is an amenable number.

13373149 is a deficient number, since it is larger than the sum of its proper divisors (29471).

13373149 is an equidigital number, since it uses as much as digits as its factorization.

13373149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29470.

The product of its digits is 6804, while the sum is 31.

The square root of 13373149 is about 3656.9316373156. The cubic root of 13373149 is about 237.3620192062.

The spelling of 13373149 in words is "thirteen million, three hundred seventy-three thousand, one hundred forty-nine".

Divisors: 1 461 29009 13373149