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30398054382 = 235173679261
BaseRepresentation
bin11100010011110111…
…010111111111101110
32220110111022011100000
4130103313113333232
5444223400220012
621544211445130
72124202125153
oct342367277756
986414264300
1030398054382
1111989a001a3
125a842b67a6
132b359a4c37
14168526422a
15bcda55ddc
hex713dd7fee

30398054382 has 48 divisors (see below), whose sum is σ = 72319573872. Its totient is φ = 9536641920.

The previous prime is 30398054341. The next prime is 30398054383. The reversal of 30398054382 is 28345089303.

It is a super-2 number, since 2×303980543822 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30398054383) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1831369 + ... + 1847892.

It is an arithmetic number, because the mean of its divisors is an integer number (1506657789).

Almost surely, 230398054382 is an apocalyptic number.

30398054382 is an abundant number, since it is smaller than the sum of its proper divisors (41921519490).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30398054382 is a wasteful number, since it uses less digits than its factorization.

30398054382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3679295 (or 3679283 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The spelling of 30398054382 in words is "thirty billion, three hundred ninety-eight million, fifty-four thousand, three hundred eighty-two".

Divisors: 1 2 3 6 9 17 18 27 34 51 54 81 102 153 162 243 306 459 486 918 1377 2754 4131 8262 3679261 7358522 11037783 22075566 33113349 62547437 66226698 99340047 125094874 187642311 198680094 298020141 375284622 562926933 596040282 894060423 1125853866 1688780799 1788120846 3377561598 5066342397 10132684794 15199027191 30398054382