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30025321140 = 223519473311693
BaseRepresentation
bin11011111101101001…
…100000101010110100
32212111111221100110010
4123331221200222310
5442442440234030
621443214500220
72112025006263
oct337551405264
985444840403
1030025321140
11118085691a1
12599b504670
132aa66bc519
14164b95a5da
15baae7b6b0
hex6fda60ab4

30025321140 has 192 divisors, whose sum is σ = 90705162240. Its totient is φ = 7397153280.

The previous prime is 30025321133. The next prime is 30025321147. The reversal of 30025321140 is 4112352003.

It is an interprime number because it is at equal distance from previous prime (30025321133) and next prime (30025321147).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30025321147) 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 63 ways as a sum of consecutive naturals, for example, 17734134 + ... + 17735826.

It is an arithmetic number, because the mean of its divisors is an integer number (472422720).

Almost surely, 230025321140 is an apocalyptic number.

30025321140 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 30025321140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45352581120).

30025321140 is an abundant number, since it is smaller than the sum of its proper divisors (60679841100).

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

30025321140 is a wasteful number, since it uses less digits than its factorization.

30025321140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2102 (or 2100 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

Adding to 30025321140 its reverse (4112352003), we get a palindrome (34137673143).

The spelling of 30025321140 in words is "thirty billion, twenty-five million, three hundred twenty-one thousand, one hundred forty".