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30032011021 = 1931314713433
BaseRepresentation
bin11011111110000011…
…000001111100001101
32212111222112020020111
4123332003001330031
5443001143323041
621444014120021
72112135611305
oct337603017415
985458466214
1030032011021
1111811318421
1259a17b0011
132aa7bc252c
14164c7bc605
15bab84d981
hex6fe0c1f0d

30032011021 has 16 divisors (see below), whose sum is σ = 31744445440. Its totient is φ = 28332944640.

The previous prime is 30032010991. The next prime is 30032011027. The reversal of 30032011021 is 12011023003.

It is a cyclic number.

It is not a de Polignac number, because 30032011021 - 223 = 30023622413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30032010992 and 30032011010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30032011027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8746321 + ... + 8749753.

It is an arithmetic number, because the mean of its divisors is an integer number (1984027840).

Almost surely, 230032011021 is an apocalyptic number.

It is an amenable number.

30032011021 is a deficient number, since it is larger than the sum of its proper divisors (1712434419).

30032011021 is a wasteful number, since it uses less digits than its factorization.

30032011021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5236.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 30032011021 its reverse (12011023003), we get a palindrome (42043034024).

The spelling of 30032011021 in words is "thirty billion, thirty-two million, eleven thousand, twenty-one".

Divisors: 1 19 313 1471 3433 5947 27949 65227 460423 1074529 5049943 8748037 20416051 95948917 1580632159 30032011021