Search a number
-
+
30505042232 = 2372329816691
BaseRepresentation
bin11100011010001111…
…100000000100111000
32220201221121201001222
4130122033200010320
5444433242322412
622002552531212
72126641403120
oct343217400470
986657551058
1030505042232
1111a34334805
125ab40b0b08
132b51bc4262
141695553c80
15bd813b072
hex71a3e0138

30505042232 has 64 divisors (see below), whose sum is σ = 70562188800. Its totient is φ = 12073944960.

The previous prime is 30505042229. The next prime is 30505042259. The reversal of 30505042232 is 23224050503.

It is a super-2 number, since 2×305050422322 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 370994 + ... + 445697.

It is an arithmetic number, because the mean of its divisors is an integer number (1102534200).

Almost surely, 230505042232 is an apocalyptic number.

It is an amenable number.

30505042232 is an abundant number, since it is smaller than the sum of its proper divisors (40057146568).

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

30505042232 is a wasteful number, since it uses less digits than its factorization.

30505042232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 816756 (or 816752 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 26.

Adding to 30505042232 its reverse (23224050503), we get a palindrome (53729092735).

The spelling of 30505042232 in words is "thirty billion, five hundred five million, forty-two thousand, two hundred thirty-two".

Divisors: 1 2 4 7 8 14 23 28 29 46 56 58 92 116 161 184 203 232 322 406 644 667 812 1288 1334 1624 2668 4669 5336 9338 18676 37352 816691 1633382 3266764 5716837 6533528 11433674 18783893 22867348 23684039 37567786 45734696 47368078 75135572 94736156 131487251 150271144 165788273 189472312 262974502 331576546 525949004 544732897 663153092 1051898008 1089465794 1326306184 2178931588 3813130279 4357863176 7626260558 15252521116 30505042232