Search a number
-
+
30428050 = 2523167293
BaseRepresentation
bin111010000010…
…0101110010010
32010020220102211
41310010232102
530242144200
63004102334
7516430342
oct164045622
963226384
1030428050
11161a3054
12a2349aa
1363c4a83
144080d22
152a10aba
hex1d04b92

30428050 has 48 divisors (see below), whose sum is σ = 59496192. Its totient is φ = 11563200.

The previous prime is 30428039. The next prime is 30428059. The reversal of 30428050 is 5082403.

It is not an unprimeable number, because it can be changed into a prime (30428059) 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 23 ways as a sum of consecutive naturals, for example, 103704 + ... + 103996.

It is an arithmetic number, because the mean of its divisors is an integer number (1239504).

Almost surely, 230428050 is an apocalyptic number.

30428050 is a deficient number, since it is larger than the sum of its proper divisors (29068142).

30428050 is a wasteful number, since it uses less digits than its factorization.

30428050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403 (or 398 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 30428050 is about 5516.1626154420. The cubic root of 30428050 is about 312.1941113472.

The spelling of 30428050 in words is "thirty million, four hundred twenty-eight thousand, fifty".

Divisors: 1 2 5 10 25 31 50 62 67 134 155 293 310 335 586 670 775 1465 1550 1675 2077 2930 3350 4154 7325 9083 10385 14650 18166 19631 20770 39262 45415 51925 90830 98155 103850 196310 227075 454150 490775 608561 981550 1217122 3042805 6085610 15214025 30428050