Search a number
-
+
30747413 = 1071132543
BaseRepresentation
bin111010101001…
…0101100010101
32010212010112002
41311102230111
530332404123
63015005045
7522230414
oct165225425
963763462
1030747413
11163a0a94
12a369785
1364a7248
14412547b
152a75528
hex1d52b15

30747413 has 8 divisors (see below), whose sum is σ = 31321728. Its totient is φ = 30178624.

The previous prime is 30747401. The next prime is 30747419. The reversal of 30747413 is 31474703.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30747413 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30747419) 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 7 ways as a sum of consecutive naturals, for example, 10820 + ... + 13362.

It is an arithmetic number, because the mean of its divisors is an integer number (3915216).

Almost surely, 230747413 is an apocalyptic number.

It is an amenable number.

30747413 is a deficient number, since it is larger than the sum of its proper divisors (574315).

30747413 is a wasteful number, since it uses less digits than its factorization.

30747413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2763.

The product of its (nonzero) digits is 7056, while the sum is 29.

The square root of 30747413 is about 5545.0349863639. The cubic root of 30747413 is about 313.2825418149.

The spelling of 30747413 in words is "thirty million, seven hundred forty-seven thousand, four hundred thirteen".

Divisors: 1 107 113 2543 12091 272101 287359 30747413