Search a number
-
+
30525025525 = 521759969379
BaseRepresentation
bin11100011011011011…
…101110110011110101
32220210100012221222221
4130123123232303311
51000003401304100
622004545122341
72130303302341
oct343333566365
986710187887
1030525025525
1111a44643525
125aba9293b1
132b5609cba7
141698076621
15bd9c8701a
hex71b6eecf5

30525025525 has 12 divisors (see below), whose sum is σ = 37853728000. Its totient is φ = 24418280880.

The previous prime is 30525025519. The next prime is 30525025547. The reversal of 30525025525 is 52552052503.

It is not a de Polignac number, because 30525025525 - 217 = 30524894453 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 405286 + ... + 474664.

Almost surely, 230525025525 is an apocalyptic number.

It is an amenable number.

30525025525 is a deficient number, since it is larger than the sum of its proper divisors (7328702475).

30525025525 is a wasteful number, since it uses less digits than its factorization.

30525025525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86988 (or 86983 counting only the distinct ones).

The product of its (nonzero) digits is 75000, while the sum is 34.

The spelling of 30525025525 in words is "thirty billion, five hundred twenty-five million, twenty-five thousand, five hundred twenty-five".

Divisors: 1 5 25 17599 69379 87995 346895 439975 1734475 1221001021 6105005105 30525025525