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30071472405 = 3513154212679
BaseRepresentation
bin11100000000011001…
…100100000100010101
32212121201210002002020
4130000121210010111
5443041244104110
621451544003353
72113125204132
oct340031440425
985551702066
1030071472405
1111831620337
1259b2a60559
132ab312ab70
141653b31589
15bb0045d70
hex700664115

30071472405 has 16 divisors (see below), whose sum is σ = 51815460480. Its totient is φ = 14804417088.

The previous prime is 30071472401. The next prime is 30071472433. The reversal of 30071472405 is 50427417003.

It is not a de Polignac number, because 30071472405 - 22 = 30071472401 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30071472401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77106145 + ... + 77106534.

It is an arithmetic number, because the mean of its divisors is an integer number (3238466280).

Almost surely, 230071472405 is an apocalyptic number.

It is an amenable number.

30071472405 is a deficient number, since it is larger than the sum of its proper divisors (21743988075).

30071472405 is a wasteful number, since it uses less digits than its factorization.

30071472405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154212700.

The product of its (nonzero) digits is 23520, while the sum is 33.

Adding to 30071472405 its reverse (50427417003), we get a palindrome (80498889408).

The spelling of 30071472405 in words is "thirty billion, seventy-one million, four hundred seventy-two thousand, four hundred five".

Divisors: 1 3 5 13 15 39 65 195 154212679 462638037 771063395 2004764827 2313190185 6014294481 10023824135 30071472405