Search a number
-
+
30672046 = 217902119
BaseRepresentation
bin111010100000…
…0010010101110
32010201022010201
41311000102232
530323001141
63013224114
7521464606
oct165002256
963638121
1030672046
111634a3a9
12a33203a
13647bb52
144105c06
152a5d031
hex1d404ae

30672046 has 8 divisors (see below), whose sum is σ = 48714480. Its totient is φ = 14433888.

The previous prime is 30672043. The next prime is 30672067. The reversal of 30672046 is 64027603.

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

It is a super-2 number, since 2×306720462 = 1881548811652232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30672043) by changing a digit.

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

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 451026 + ... + 451093.

It is an arithmetic number, because the mean of its divisors is an integer number (6089310).

Almost surely, 230672046 is an apocalyptic number.

30672046 is a deficient number, since it is larger than the sum of its proper divisors (18042434).

30672046 is a wasteful number, since it uses less digits than its factorization.

30672046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902138.

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 30672046 is about 5538.2349173721. The cubic root of 30672046 is about 313.0263632624.

Adding to 30672046 its reverse (64027603), we get a palindrome (94699649).

The spelling of 30672046 in words is "thirty million, six hundred seventy-two thousand, forty-six".

Divisors: 1 2 17 34 902119 1804238 15336023 30672046