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30338130 = 2351011271
BaseRepresentation
bin111001110111…
…0110001010010
32010002100002110
41303232301102
530231310010
63002130150
7515604234
oct163566122
963070073
1030338130
1116141539
12a1b0956
136392b74
14405a254
1529e4120
hex1ceec52

30338130 has 16 divisors (see below), whose sum is σ = 72811584. Its totient is φ = 8090160.

The previous prime is 30338111. The next prime is 30338131. The reversal of 30338130 is 3183303.

It is a junction number, because it is equal to n+sod(n) for n = 30338097 and 30338106.

It is not an unprimeable number, because it can be changed into a prime (30338131) 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, 505606 + ... + 505665.

It is an arithmetic number, because the mean of its divisors is an integer number (4550724).

Almost surely, 230338130 is an apocalyptic number.

30338130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30338130 is an abundant number, since it is smaller than the sum of its proper divisors (42473454).

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

30338130 is a wasteful number, since it uses less digits than its factorization.

30338130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011281.

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

The square root of 30338130 is about 5508.0059912821. The cubic root of 30338130 is about 311.8862792322.

The spelling of 30338130 in words is "thirty million, three hundred thirty-eight thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 1011271 2022542 3033813 5056355 6067626 10112710 15169065 30338130