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30671304 = 2331277971
BaseRepresentation
bin111010100000…
…0000111001000
32010201021010020
41311000013020
530322440204
63013220440
7521462466
oct165000710
963637106
1030671304
1116349894
12a331720
13647b701
144105836
152a5cbd9
hex1d401c8

30671304 has 16 divisors (see below), whose sum is σ = 76678320. Its totient is φ = 10223760.

The previous prime is 30671293. The next prime is 30671309. The reversal of 30671304 is 40317603.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 1277971 = 30671304 / (3 + 0 + 6 + 7 + 1 + 3 + 0 + 4).

It is not an unprimeable number, because it can be changed into a prime (30671309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 638962 + ... + 639009.

It is an arithmetic number, because the mean of its divisors is an integer number (4792395).

Almost surely, 230671304 is an apocalyptic number.

It is an amenable number.

30671304 is an abundant number, since it is smaller than the sum of its proper divisors (46007016).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30671304 is a wasteful number, since it uses less digits than its factorization.

30671304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1277980 (or 1277976 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 24.

The square root of 30671304 is about 5538.1679281149. The cubic root of 30671304 is about 313.0238390591.

Adding to 30671304 its reverse (40317603), we get a palindrome (70988907).

It can be divided in two parts, 3067 and 1304, that added together give a triangular number (4371 = T93).

The spelling of 30671304 in words is "thirty million, six hundred seventy-one thousand, three hundred four".

Divisors: 1 2 3 4 6 8 12 24 1277971 2555942 3833913 5111884 7667826 10223768 15335652 30671304