Search a number
-
+
30091673 = 283106331
BaseRepresentation
bin111001011001…
…0100110011001
32002121211000102
41302302212121
530200413143
62552545145
7513526553
oct162624631
962554012
1030091673
1115a93357
12a0b21b5
136307931
143dd44d3
1529960b8
hex1cb2999

30091673 has 4 divisors (see below), whose sum is σ = 30198288. Its totient is φ = 29985060.

The previous prime is 30091667. The next prime is 30091679. The reversal of 30091673 is 37619003.

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.

It is an interprime number because it is at equal distance from previous prime (30091667) and next prime (30091679).

It is a cyclic number.

It is not a de Polignac number, because 30091673 - 24 = 30091657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30091679) 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, 52883 + ... + 53448.

It is an arithmetic number, because the mean of its divisors is an integer number (7549572).

Almost surely, 230091673 is an apocalyptic number.

It is an amenable number.

30091673 is a deficient number, since it is larger than the sum of its proper divisors (106615).

30091673 is a wasteful number, since it uses less digits than its factorization.

30091673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106614.

The product of its (nonzero) digits is 3402, while the sum is 29.

The square root of 30091673 is about 5485.5877533770. The cubic root of 30091673 is about 311.0394280095.

The spelling of 30091673 in words is "thirty million, ninety-one thousand, six hundred seventy-three".

Divisors: 1 283 106331 30091673