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30222030 = 2351007401
BaseRepresentation
bin111001101001…
…0011011001110
32002212102211110
41303102123032
530214101110
62555432450
7514611606
oct163223316
962772743
1030222030
1116072293
12a155726
136352077
144029c06
1529bea20
hex1cd26ce

30222030 has 16 divisors (see below), whose sum is σ = 72532944. Its totient is φ = 8059200.

The previous prime is 30222013. The next prime is 30222037. The reversal of 30222030 is 3022203.

It is a junction number, because it is equal to n+sod(n) for n = 30221997 and 30222015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30222037) 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, 503671 + ... + 503730.

It is an arithmetic number, because the mean of its divisors is an integer number (4533309).

Almost surely, 230222030 is an apocalyptic number.

30222030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30222030 is an abundant number, since it is smaller than the sum of its proper divisors (42310914).

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

30222030 is a wasteful number, since it uses less digits than its factorization.

30222030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1007411.

The product of its (nonzero) digits is 72, while the sum is 12.

The square root of 30222030 is about 5497.4566846861. The cubic root of 30222030 is about 311.4879215026.

Adding to 30222030 its reverse (3022203), we get a palindrome (33244233).

The spelling of 30222030 in words is "thirty million, two hundred twenty-two thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 1007401 2014802 3022203 5037005 6044406 10074010 15111015 30222030