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30262321989 = 323362480221
BaseRepresentation
bin11100001011110001…
…100110001101000101
32220010000220020111100
4130023301212031011
5443434123300424
621522522330313
72120633330664
oct341361461505
986100806440
1030262321989
111191a323469
125a46959999
132b13830203
141671210ddb
15bc1b93dc9
hex70bc66345

30262321989 has 6 divisors (see below), whose sum is σ = 43712242886. Its totient is φ = 20174881320.

The previous prime is 30262321907. The next prime is 30262322039. The reversal of 30262321989 is 98912326203.

It is a happy number.

30262321989 is a `hidden beast` number, since 3 + 0 + 2 + 623 + 2 + 19 + 8 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 17273844900 + 12988477089 = 131430^2 + 113967^2 .

It is not a de Polignac number, because 30262321989 - 215 = 30262289221 is a prime.

It is a super-2 number, since 2×302623219892 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30262320989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1681240102 + ... + 1681240119.

Almost surely, 230262321989 is an apocalyptic number.

It is an amenable number.

30262321989 is a deficient number, since it is larger than the sum of its proper divisors (13449920897).

30262321989 is a wasteful number, since it uses less digits than its factorization.

30262321989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3362480227 (or 3362480224 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The spelling of 30262321989 in words is "thirty billion, two hundred sixty-two million, three hundred twenty-one thousand, nine hundred eighty-nine".

Divisors: 1 3 9 3362480221 10087440663 30262321989