Search a number
-
+
30774037 = 74396291
BaseRepresentation
bin111010101100…
…1001100010101
32010220111001011
41311121030111
530334232122
63015332221
7522401140
oct165311425
963814034
1030774037
1116409a98
12a381071
1364b63b8
144131057
152a7d377
hex1d59315

30774037 has 4 divisors (see below), whose sum is σ = 35170336. Its totient is φ = 26377740.

The previous prime is 30774001. The next prime is 30774059. The reversal of 30774037 is 73047703.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 73047703 = 103709201.

It is a cyclic number.

It is not a de Polignac number, because 30774037 - 27 = 30773909 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 (30775037) 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, 2198139 + ... + 2198152.

It is an arithmetic number, because the mean of its divisors is an integer number (8792584).

Almost surely, 230774037 is an apocalyptic number.

It is an amenable number.

30774037 is a deficient number, since it is larger than the sum of its proper divisors (4396299).

30774037 is an equidigital number, since it uses as much as digits as its factorization.

30774037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4396298.

The product of its (nonzero) digits is 12348, while the sum is 31.

The square root of 30774037 is about 5547.4351731228. The cubic root of 30774037 is about 313.3729388848.

The spelling of 30774037 in words is "thirty million, seven hundred seventy-four thousand, thirty-seven".

Divisors: 1 7 4396291 30774037