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30421340334 = 232711166913151
BaseRepresentation
bin11100010101010000…
…001101000010101110
32220112010010012122200
4130111100031002232
5444300330342314
621550402522330
72124604061220
oct342520150256
986463105580
1030421340334
11119a1065290
125a900663a6
132b3a768bc8
1416883a6410
15bd0b05709
hex71540d0ae

30421340334 has 96 divisors (see below), whose sum is σ = 82232616960. Its totient is φ = 7896312000.

The previous prime is 30421340311. The next prime is 30421340347. The reversal of 30421340334 is 43304312403.

30421340334 is a `hidden beast` number, since 304 + 21 + 3 + 4 + 0 + 334 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 30421340298 and 30421340307.

It is a congruent number.

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, 2306659 + ... + 2319809.

It is an arithmetic number, because the mean of its divisors is an integer number (856589760).

Almost surely, 230421340334 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30421340334, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41116308480).

30421340334 is an abundant number, since it is smaller than the sum of its proper divisors (51811276626).

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

30421340334 is a wasteful number, since it uses less digits than its factorization.

30421340334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14846 (or 14843 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 30421340334 its reverse (43304312403), we get a palindrome (73725652737).

The spelling of 30421340334 in words is "thirty billion, four hundred twenty-one million, three hundred forty thousand, three hundred thirty-four".

Divisors: 1 2 3 6 7 9 11 14 18 21 22 33 42 63 66 77 99 126 154 198 231 462 693 1386 1669 3338 5007 10014 11683 13151 15021 18359 23366 26302 30042 35049 36718 39453 55077 70098 78906 92057 105147 110154 118359 128513 144661 165231 184114 210294 236718 257026 276171 289322 330462 385539 433983 552342 771078 828513 867966 1012627 1156617 1301949 1657026 2025254 2313234 2603898 3037881 6075762 9113643 18227286 21949019 43898038 65847057 131694114 153643133 197541171 241439209 307286266 395082342 460929399 482878418 724317627 921858798 1382788197 1448635254 1690074463 2172952881 2765576394 3380148926 4345905762 5070223389 10140446778 15210670167 30421340334