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30541048821 = 323393449869
BaseRepresentation
bin11100011100011000…
…110110101111110101
32220211110101000211100
4130130120312233311
51000022002030241
622010320400313
72130556426443
oct343430665765
986743330740
1030541048821
1111a52698018
125b04176099
132b594c022a
14169a247b93
15bdb39e9b6
hex71c636bf5

30541048821 has 6 divisors (see below), whose sum is σ = 44114848310. Its totient is φ = 20360699208.

The previous prime is 30541048771. The next prime is 30541048823. The reversal of 30541048821 is 12884014503.

30541048821 is a `hidden beast` number, since 30 + 541 + 0 + 4 + 8 + 82 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 22675842225 + 7865206596 = 150585^2 + 88686^2 .

It is not a de Polignac number, because 30541048821 - 29 = 30541048309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30541048823) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1696724926 + ... + 1696724943.

Almost surely, 230541048821 is an apocalyptic number.

It is an amenable number.

30541048821 is a deficient number, since it is larger than the sum of its proper divisors (13573799489).

30541048821 is a wasteful number, since it uses less digits than its factorization.

30541048821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3393449875 (or 3393449872 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The spelling of 30541048821 in words is "thirty billion, five hundred forty-one million, forty-eight thousand, eight hundred twenty-one".

Divisors: 1 3 9 3393449869 10180349607 30541048821