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304790047 = 3159166643
BaseRepresentation
bin10010001010101…
…011101000011111
3210020111221100021
4102022223220133
51111011240142
650124413011
710360446502
oct2212535037
9706457307
10304790047
11147056301
12860a7167
134b1b7153
142c69d139
151bb58267
hex122aba1f

304790047 has 8 divisors (see below), whose sum is σ = 319956480. Its totient is φ = 289957080.

The previous prime is 304790011. The next prime is 304790071. The reversal of 304790047 is 740097403.

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

It is a cyclic number.

It is not a de Polignac number, because 304790047 - 215 = 304757279 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 304789994 and 304790021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304700047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81493 + ... + 85150.

It is an arithmetic number, because the mean of its divisors is an integer number (39994560).

Almost surely, 2304790047 is an apocalyptic number.

304790047 is a deficient number, since it is larger than the sum of its proper divisors (15166433).

304790047 is a wasteful number, since it uses less digits than its factorization.

304790047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166733.

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 304790047 is about 17458.2372248747. The cubic root of 304790047 is about 672.9770596403.

The spelling of 304790047 in words is "three hundred four million, seven hundred ninety thousand, forty-seven".

Divisors: 1 31 59 1829 166643 5165933 9831937 304790047