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30506423434 = 2373160725447
BaseRepresentation
bin11100011010010100…
…110001010010001010
32220202001012212201121
4130122110301102022
5444434121022214
622003042305454
72126656215004
oct343224612212
986661185647
1030506423434
1111a350984a3
125ab465828a
132b52288b36
1416957d3374
15bd8310424
hex71a53148a

30506423434 has 16 divisors (see below), whose sum is σ = 45912670848. Its totient is φ = 15202254672.

The previous prime is 30506423419. The next prime is 30506423471. The reversal of 30506423434 is 43432460503.

It is a self number, because there is not a number n which added to its sum of digits gives 30506423434.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1186099 + ... + 1211545.

It is an arithmetic number, because the mean of its divisors is an integer number (2869541928).

Almost surely, 230506423434 is an apocalyptic number.

30506423434 is a deficient number, since it is larger than the sum of its proper divisors (15406247414).

30506423434 is a wasteful number, since it uses less digits than its factorization.

30506423434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27429.

The product of its (nonzero) digits is 103680, while the sum is 34.

Adding to 30506423434 its reverse (43432460503), we get a palindrome (73938883937).

The spelling of 30506423434 in words is "thirty billion, five hundred six million, four hundred twenty-three thousand, four hundred thirty-four".

Divisors: 1 2 373 746 1607 3214 25447 50894 599411 1198822 9491731 18983462 40893329 81786658 15253211717 30506423434