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30055531450 = 2527401214147
BaseRepresentation
bin11011111111011100…
…110000001110111010
32212120121210012012111
4123333130300032322
5443023204001300
621450214202534
72112542542060
oct337734601672
985517705174
1030055531450
111182362269a
1259a965344a
132aaca39149
141651982030
15bad9479ba
hex6ff7303ba

30055531450 has 48 divisors (see below), whose sum is σ = 64049097024. Its totient is φ = 10279008000.

The previous prime is 30055531439. The next prime is 30055531459. The reversal of 30055531450 is 5413555003.

It is not an unprimeable number, because it can be changed into a prime (30055531459) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33277 + ... + 247423.

It is an arithmetic number, because the mean of its divisors is an integer number (1334356188).

Almost surely, 230055531450 is an apocalyptic number.

30055531450 is an abundant number, since it is smaller than the sum of its proper divisors (33993565574).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30055531450 is a wasteful number, since it uses less digits than its factorization.

30055531450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214567 (or 214562 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 31.

It can be divided in two parts, 3005553 and 1450, that added together give a palindrome (3007003).

The spelling of 30055531450 in words is "thirty billion, fifty-five million, five hundred thirty-one thousand, four hundred fifty".

Divisors: 1 2 5 7 10 14 25 35 50 70 175 350 401 802 2005 2807 4010 5614 10025 14035 20050 28070 70175 140350 214147 428294 1070735 1499029 2141470 2998058 5353675 7495145 10707350 14990290 37475725 74951450 85872947 171745894 429364735 601110629 858729470 1202221258 2146823675 3005553145 4293647350 6011106290 15027765725 30055531450