Search a number
-
+
30032032020021 = 331577084697339
BaseRepresentation
bin1101101010000011000001…
…00110011011011000110101
310221100000220221120222022000
412311001200212123120311
512414021100144120041
6143512305224325513
76216512515150533
oct665014046333065
9127300827528260
1030032032020021
119629571161879
1234504aa913899
13139b0157acc55
1475b7b5627153
15371306edcbb6
hex1b506099b635

30032032020021 has 16 divisors (see below), whose sum is σ = 44775287188800. Its totient is φ = 19893830125104.

The previous prime is 30032032020019. The next prime is 30032032020049. The reversal of 30032032020021 is 12002023023003.

It is a happy number.

30032032020021 is a `hidden beast` number, since 3 + 0 + 0 + 320 + 320 + 2 + 0 + 0 + 21 = 666.

It is not a de Polignac number, because 30032032020021 - 21 = 30032032020019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30032032019976 and 30032032020003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30032032020121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3542344431 + ... + 3542352908.

It is an arithmetic number, because the mean of its divisors is an integer number (2798455449300).

Almost surely, 230032032020021 is an apocalyptic number.

It is an amenable number.

30032032020021 is a deficient number, since it is larger than the sum of its proper divisors (14743255168779).

30032032020021 is a wasteful number, since it uses less digits than its factorization.

30032032020021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7084697505 (or 7084697499 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 30032032020021 its reverse (12002023023003), we get a palindrome (42034055043024).

The spelling of 30032032020021 in words is "thirty trillion, thirty-two billion, thirty-two million, twenty thousand, twenty-one".

Divisors: 1 3 9 27 157 471 1413 4239 7084697339 21254092017 63762276051 191286828153 1112297482223 3336892446669 10010677340007 30032032020021