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30421015524 = 22322491933911
BaseRepresentation
bin11100010101001110…
…111101101111100100
32220112002111201002200
4130111032331233210
5444300234444044
621550351534500
72124601236234
oct342516755744
986462451080
1030421015524
11119a0963249
125a8bb2a430
132b3a684103
14168831dcc4
15bd0a8e369
hex7153bdbe4

30421015524 has 36 divisors (see below), whose sum is σ = 76902920640. Its totient is φ = 10139632560.

The previous prime is 30421015441. The next prime is 30421015561. The reversal of 30421015524 is 42551012403.

30421015524 is a `hidden beast` number, since 3 + 0 + 4 + 2 + 101 + 552 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×304210155242 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 880129 + ... + 914039.

It is an arithmetic number, because the mean of its divisors is an integer number (2136192240).

Almost surely, 230421015524 is an apocalyptic number.

It is an amenable number.

30421015524 is an abundant number, since it is smaller than the sum of its proper divisors (46481905116).

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

30421015524 is a wasteful number, since it uses less digits than its factorization.

30421015524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58840 (or 58835 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 30421015524 its reverse (42551012403), we get a palindrome (72972027927).

The spelling of 30421015524 in words is "thirty billion, four hundred twenty-one million, fifteen thousand, five hundred twenty-four".

Divisors: 1 2 3 4 6 9 12 18 36 24919 33911 49838 67822 74757 99676 101733 135644 149514 203466 224271 299028 305199 406932 448542 610398 897084 1220796 845028209 1690056418 2535084627 3380112836 5070169254 7605253881 10140338508 15210507762 30421015524