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30033302021 = 277197954787
BaseRepresentation
bin11011111110000111…
…111101001000000101
32212112001221211011022
4123332013331020011
5443002011131041
621444101520525
72112152566202
oct337607751005
985461854138
1030033302021
111181201a368
1259a2113145
132aa8255038
14164ca36ca9
15baba0624b
hex6fe1fd205

30033302021 has 8 divisors (see below), whose sum is σ = 30157506720. Its totient is φ = 29909211408.

The previous prime is 30033301979. The next prime is 30033302023. The reversal of 30033302021 is 12020333003.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30033302021 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 (30033302023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 520790 + ... + 575576.

It is an arithmetic number, because the mean of its divisors is an integer number (3769688340).

Almost surely, 230033302021 is an apocalyptic number.

It is an amenable number.

30033302021 is a deficient number, since it is larger than the sum of its proper divisors (124204699).

30033302021 is a wasteful number, since it uses less digits than its factorization.

30033302021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57043.

The product of its (nonzero) digits is 324, while the sum is 17.

Adding to 30033302021 its reverse (12020333003), we get a palindrome (42053635024).

The spelling of 30033302021 in words is "thirty billion, thirty-three million, three hundred two thousand, twenty-one".

Divisors: 1 277 1979 54787 548183 15175999 108423473 30033302021