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30042593280 = 211335719243
BaseRepresentation
bin11011111110101011…
…011001100000000000
32212112201102212101000
4123332223121200000
5443011400441110
621445033012000
72112324554340
oct337653314000
985481385330
1030042593280
1111817295a97
1259a5254000
132aaa15911b
14164dd74d20
15bac73e1c0
hex6fead9800

30042593280 has 1152 divisors, whose sum is σ = 131805273600. Its totient is φ = 6354173952.

The previous prime is 30042593279. The next prime is 30042593333. The reversal of 30042593280 is 8239524003.

30042593280 is a `hidden beast` number, since 3 + 0 + 0 + 42 + 593 + 28 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1152).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 698664939 + ... + 698664981.

It is an arithmetic number, because the mean of its divisors is an integer number (114414300).

Almost surely, 230042593280 is an apocalyptic number.

30042593280 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30042593280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65902636800).

30042593280 is an abundant number, since it is smaller than the sum of its proper divisors (101762680320).

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

30042593280 is a wasteful number, since it uses less digits than its factorization.

30042593280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124 (or 79 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 30042593280 in words is "thirty billion, forty-two million, five hundred ninety-three thousand, two hundred eighty".