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30042512225 = 5211243713253
BaseRepresentation
bin11011111110101011…
…000101101101100001
32212112201021202011222
4123332223011231201
5443011340342400
621445031144425
72112324066125
oct337653055541
985481252158
1030042512225
1111817240100
1259a5215115
132aaa12b26b
14164dd53585
15bac725185
hex6feac5b61

30042512225 has 72 divisors (see below), whose sum is σ = 42502654656. Its totient is φ = 21033936000.

The previous prime is 30042512219. The next prime is 30042512231. The reversal of 30042512225 is 52221524003.

It is an interprime number because it is at equal distance from previous prime (30042512219) and next prime (30042512231).

It is not a de Polignac number, because 30042512225 - 26 = 30042512161 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30042512194 and 30042512203.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 9233699 + ... + 9236951.

It is an arithmetic number, because the mean of its divisors is an integer number (590314648).

Almost surely, 230042512225 is an apocalyptic number.

It is an amenable number.

30042512225 is a deficient number, since it is larger than the sum of its proper divisors (12460142431).

30042512225 is a wasteful number, since it uses less digits than its factorization.

30042512225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3399 (or 3383 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The spelling of 30042512225 in words is "thirty billion, forty-two million, five hundred twelve thousand, two hundred twenty-five".

Divisors: 1 5 11 25 43 55 71 121 215 275 355 473 605 781 1075 1775 2365 3025 3053 3253 3905 5203 8591 11825 15265 16265 19525 26015 33583 35783 42955 76325 81325 130075 139879 167915 178915 214775 230963 369413 393613 699395 839575 894575 1154815 1538669 1847065 1968065 2540593 3496975 5774075 7693345 9235325 9840325 9931409 12702965 16925359 27946523 38466725 49657045 63514825 84626795 109245499 139732615 248285225 423133975 546227495 698663075 1201700489 2731137475 6008502445 30042512225