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30500500505 = 561163613507
BaseRepresentation
bin11100011001111110…
…001011010000011001
32220201122001221222212
4130121332023100121
5444431112004010
622002311324505
72126554655666
oct343176132031
986648057885
1030500500505
1111a31812512
125ab2680735
132b50c93c47
141694ad0a6d
15bd7a40505
hex719f8b419

30500500505 has 16 divisors (see below), whose sum is σ = 37428896064. Its totient is φ = 23853113280.

The previous prime is 30500500501. The next prime is 30500500507. The reversal of 30500500505 is 50500500503.

It is a happy number.

It is not a de Polignac number, because 30500500505 - 22 = 30500500501 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30500500501) 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, 257039 + ... + 356468.

It is an arithmetic number, because the mean of its divisors is an integer number (2339306004).

Almost surely, 230500500505 is an apocalyptic number.

It is an amenable number.

30500500505 is a deficient number, since it is larger than the sum of its proper divisors (6928395559).

30500500505 is a wasteful number, since it uses less digits than its factorization.

30500500505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613736.

The product of its (nonzero) digits is 1875, while the sum is 23.

The spelling of 30500500505 in words is "thirty billion, five hundred million, five hundred thousand, five hundred five".

Divisors: 1 5 61 163 305 815 9943 49715 613507 3067535 37423927 100001641 187119635 500008205 6100100101 30500500505