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30025849056 = 2537316772129
BaseRepresentation
bin11011111101101011…
…100001100011100000
32212111112221011121120
4123331223201203200
5442443104132211
621443234052240
72112032335350
oct337553414340
985445834546
1030025849056
1111808899895
12599b71a080
132aa68458b8
14164ba56b60
15bab032d06
hex6fdae18e0

30025849056 has 192 divisors, whose sum is σ = 93164359680. Its totient is φ = 8285921280.

The previous prime is 30025849039. The next prime is 30025849057. The reversal of 30025849056 is 65094852003.

It is a super-2 number, since 2×300258490562 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 30025848999 and 30025849017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30025849057) 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 31 ways as a sum of consecutive naturals, for example, 14102200 + ... + 14104328.

It is an arithmetic number, because the mean of its divisors is an integer number (485231040).

Almost surely, 230025849056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30025849056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46582179840).

30025849056 is an abundant number, since it is smaller than the sum of its proper divisors (63138510624).

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

30025849056 is a wasteful number, since it uses less digits than its factorization.

30025849056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2857 (or 2849 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 42.

The spelling of 30025849056 in words is "thirty billion, twenty-five million, eight hundred forty-nine thousand, fifty-six".