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30555025505 = 5101239253159
BaseRepresentation
bin11100011101001110…
…001011000001100001
32220212102200010020022
4130131032023001201
51000034041304010
622011540123225
72131116301004
oct343516130141
986772603208
1030555025505
1111a5a5739a4
125b08996515
132b5c374b64
14169c04553b
15bdc710d55
hex71d38b061

30555025505 has 16 divisors (see below), whose sum is σ = 37184140800. Its totient is φ = 24100641600.

The previous prime is 30555025451. The next prime is 30555025513. The reversal of 30555025505 is 50552055503.

It is not a de Polignac number, because 30555025505 - 224 = 30538248289 is a prime.

It is a super-2 number, since 2×305550255052 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5885 + ... + 247274.

It is an arithmetic number, because the mean of its divisors is an integer number (2324008800).

Almost surely, 230555025505 is an apocalyptic number.

It is an amenable number.

30555025505 is a deficient number, since it is larger than the sum of its proper divisors (6629115295).

30555025505 is a wasteful number, since it uses less digits than its factorization.

30555025505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253504.

The product of its (nonzero) digits is 93750, while the sum is 35.

The spelling of 30555025505 in words is "thirty billion, five hundred fifty-five million, twenty-five thousand, five hundred five".

Divisors: 1 5 101 239 505 1195 24139 120695 253159 1265795 25569059 60505001 127845295 302525005 6111005101 30555025505