Search a number
-
+
30434120055 = 325976972307
BaseRepresentation
bin11100010110000000…
…111101000101110111
32220120000011111010200
4130112000331011313
5444312113320210
621551540451543
72125120515663
oct342600750567
986500144120
1030434120055
11119a82a3939
125a943a9bb3
132b402c1a81
141689d718a3
15bd1ccc0c0
hex71603d177

30434120055 has 24 divisors (see below), whose sum is σ = 53296322352. Its totient is φ = 16064193024.

The previous prime is 30434120023. The next prime is 30434120089. The reversal of 30434120055 is 55002143403.

It is not a de Polignac number, because 30434120055 - 25 = 30434120023 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3481789 + ... + 3490518.

It is an arithmetic number, because the mean of its divisors is an integer number (2220680098).

Almost surely, 230434120055 is an apocalyptic number.

30434120055 is a deficient number, since it is larger than the sum of its proper divisors (22862202297).

30434120055 is a wasteful number, since it uses less digits than its factorization.

30434120055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6972415 (or 6972412 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

Adding to 30434120055 its reverse (55002143403), we get a palindrome (85436263458).

The spelling of 30434120055 in words is "thirty billion, four hundred thirty-four million, one hundred twenty thousand, fifty-five".

Divisors: 1 3 5 9 15 45 97 291 485 873 1455 4365 6972307 20916921 34861535 62750763 104584605 313753815 676313779 2028941337 3381568895 6086824011 10144706685 30434120055