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30304092 = 22371327751
BaseRepresentation
bin111001110011…
…0011101011100
32010000121101210
41303212131130
530224212332
63001304420
7515403060
oct163463534
963017353
1030304092
1116118a05
12a195110
136380520
14404baa0
1529d8ecc
hex1ce675c

30304092 has 48 divisors (see below), whose sum is σ = 87030272. Its totient is φ = 7992000.

The previous prime is 30304091. The next prime is 30304093. The reversal of 30304092 is 29040303.

It is an interprime number because it is at equal distance from previous prime (30304091) and next prime (30304093).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30304091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12784 + ... + 14967.

Almost surely, 230304092 is an apocalyptic number.

It is an amenable number.

30304092 is an abundant number, since it is smaller than the sum of its proper divisors (56726180).

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

30304092 is a wasteful number, since it uses less digits than its factorization.

30304092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27778 (or 27776 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 30304092 is about 5504.9152582033. The cubic root of 30304092 is about 311.7695948500.

Adding to 30304092 its reverse (29040303), we get a palindrome (59344395).

The spelling of 30304092 in words is "thirty million, three hundred four thousand, ninety-two".

Divisors: 1 2 3 4 6 7 12 13 14 21 26 28 39 42 52 78 84 91 156 182 273 364 546 1092 27751 55502 83253 111004 166506 194257 333012 360763 388514 582771 721526 777028 1082289 1165542 1443052 2164578 2331084 2525341 4329156 5050682 7576023 10101364 15152046 30304092