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30420430134 = 2331718778521
BaseRepresentation
bin11100010101001100…
…101110110100110110
32220112001101222002120
4130111030232310312
5444300112231014
621550331220410
72124563250453
oct342514566466
986461358076
1030420430134
11119a05a3456
125a8b8a7706
132b3a50a823
14168820a82a
15bd09c5ba9
hex71532ed36

30420430134 has 32 divisors (see below), whose sum is σ = 61072469856. Its totient is φ = 10101584640.

The previous prime is 30420430129. The next prime is 30420430141. The reversal of 30420430134 is 43103402403.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3565794 + ... + 3574314.

It is an arithmetic number, because the mean of its divisors is an integer number (1908514683).

Almost surely, 230420430134 is an apocalyptic number.

30420430134 is an abundant number, since it is smaller than the sum of its proper divisors (30652039722).

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

30420430134 is a wasteful number, since it uses less digits than its factorization.

30420430134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10720.

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 30420430134 its reverse (43103402403), we get a palindrome (73523832537).

The spelling of 30420430134 in words is "thirty billion, four hundred twenty million, four hundred thirty thousand, one hundred thirty-four".

Divisors: 1 2 3 6 317 634 951 1877 1902 3754 5631 8521 11262 17042 25563 51126 595009 1190018 1785027 2701157 3570054 5402314 8103471 15993917 16206942 31987834 47981751 95963502 5070071689 10140143378 15210215067 30420430134