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30422412 = 22331012789
BaseRepresentation
bin111010000001…
…1010110001100
32010020121201000
41310003112030
530242004122
63004020300
7516405036
oct164032614
963217630
1030422412
1116199899
12a231690
1363c2337
14407cc56
152a0e0ac
hex1d0358c

30422412 has 48 divisors (see below), whose sum is σ = 79682400. Its totient is φ = 10036800.

The previous prime is 30422407. The next prime is 30422417. The reversal of 30422412 is 21422403.

It is an interprime number because it is at equal distance from previous prime (30422407) and next prime (30422417).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (30422417) 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 15 ways as a sum of consecutive naturals, for example, 9514 + ... + 12302.

It is an arithmetic number, because the mean of its divisors is an integer number (1660050).

Almost surely, 230422412 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30422412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39841200).

30422412 is an abundant number, since it is smaller than the sum of its proper divisors (49259988).

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

30422412 is a wasteful number, since it uses less digits than its factorization.

30422412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2903 (or 2895 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 30422412 is about 5515.6515480947. The cubic root of 30422412 is about 312.1748280529.

Adding to 30422412 its reverse (21422403), we get a palindrome (51844815).

Subtracting from 30422412 its reverse (21422403), we obtain a palindrome (9000009).

The spelling of 30422412 in words is "thirty million, four hundred twenty-two thousand, four hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 101 108 202 303 404 606 909 1212 1818 2727 2789 3636 5454 5578 8367 10908 11156 16734 25101 33468 50202 75303 100404 150606 281689 301212 563378 845067 1126756 1690134 2535201 3380268 5070402 7605603 10140804 15211206 30422412