Search a number
-
+
30425152521 = 389363113489
BaseRepresentation
bin11100010101011110…
…101111110000001001
32220112101021212222210
4130111132233300021
5444302314340041
621551020335333
72124651346401
oct342536576011
986471255883
1030425152521
11119a3229455
125a913a4549
132b3b4a213a
141688ab9801
15bd110a016
hex7157afc09

30425152521 has 8 divisors (see below), whose sum is σ = 40567681440. Its totient is φ = 20283029312.

The previous prime is 30425152489. The next prime is 30425152529. The reversal of 30425152521 is 12525152403.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30425152521 - 25 = 30425152489 is a prime.

It is a super-2 number, since 2×304251525212 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30425152529) 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 7 ways as a sum of consecutive naturals, for example, 211345 + ... + 324833.

It is an arithmetic number, because the mean of its divisors is an integer number (5070960180).

Almost surely, 230425152521 is an apocalyptic number.

It is an amenable number.

30425152521 is a deficient number, since it is larger than the sum of its proper divisors (10142528919).

30425152521 is a wasteful number, since it uses less digits than its factorization.

30425152521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202855.

The product of its (nonzero) digits is 12000, while the sum is 30.

The spelling of 30425152521 in words is "thirty billion, four hundred twenty-five million, one hundred fifty-two thousand, five hundred twenty-one".

Divisors: 1 3 89363 113489 268089 340467 10141717507 30425152521