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30025055506 = 215012527753
BaseRepresentation
bin11011111101101000…
…011111110100010010
32212111111102212001211
4123331220133310102
5442442403234011
621443205050334
72112022521655
oct337550376422
985444385054
1030025055506
11118083a7666
12599b3b69aa
132aa6628644
14164b8cb89c
15baae27b21
hex6fda1fd12

30025055506 has 4 divisors (see below), whose sum is σ = 45037583262. Its totient is φ = 15012527752.

The previous prime is 30025055503. The next prime is 30025055513. The reversal of 30025055506 is 60555052003.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 29960494281 + 64561225 = 173091^2 + 8035^2 .

It is not an unprimeable number, because it can be changed into a prime (30025055503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7506263875 + ... + 7506263878.

Almost surely, 230025055506 is an apocalyptic number.

30025055506 is a deficient number, since it is larger than the sum of its proper divisors (15012527756).

30025055506 is a wasteful number, since it uses less digits than its factorization.

30025055506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15012527755.

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

The spelling of 30025055506 in words is "thirty billion, twenty-five million, fifty-five thousand, five hundred six".

Divisors: 1 2 15012527753 30025055506