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30421042224 = 2431729297457
BaseRepresentation
bin11100010101001111…
…000100010000110000
32220112002120001201120
4130111033010100300
5444300241322344
621550352302240
72124601410126
oct342517042060
986462501646
1030421042224
11119a0981311
125a8bb41980
132b3a693301
141688329916
15bd0a97219
hex7153c4430

30421042224 has 240 divisors, whose sum is σ = 87257727648. Its totient is φ = 9099804672.

The previous prime is 30421042217. The next prime is 30421042259. The reversal of 30421042224 is 42224012403.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 30421042194 and 30421042203.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 66566604 + ... + 66567060.

Almost surely, 230421042224 is an apocalyptic number.

30421042224 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30421042224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43628863824).

30421042224 is an abundant number, since it is smaller than the sum of its proper divisors (56836685424).

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

30421042224 is a wasteful number, since it uses less digits than its factorization.

30421042224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640 (or 605 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 30421042224 its reverse (42224012403), we get a palindrome (72645054627).

The spelling of 30421042224 in words is "thirty billion, four hundred twenty-one million, forty-two thousand, two hundred twenty-four".