Search a number
-
+
30324211525 = 521212968461
BaseRepresentation
bin11100001111011101…
…101011111101000101
32220021100100112222101
4130033131223331011
5444100444232100
621533013032101
72122314354646
oct341735537505
986240315871
1030324211525
1111951254a43
125a63625631
132b235bc23a
1416795216cd
15bc731b86a
hex70f76bf45

30324211525 has 6 divisors (see below), whose sum is σ = 37602022322. Its totient is φ = 24259369200.

The previous prime is 30324211523. The next prime is 30324211529. The reversal of 30324211525 is 52511242303.

It can be written as a sum of positive squares in 3 ways, for example, as 96216481 + 30227995044 = 9809^2 + 173862^2 .

It is not a de Polignac number, because 30324211525 - 21 = 30324211523 is a prime.

It is a super-2 number, since 2×303242115252 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30324211493 and 30324211502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30324211523) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 606484206 + ... + 606484255.

Almost surely, 230324211525 is an apocalyptic number.

It is an amenable number.

30324211525 is a deficient number, since it is larger than the sum of its proper divisors (7277810797).

30324211525 is a wasteful number, since it uses less digits than its factorization.

30324211525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1212968471 (or 1212968466 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 30324211525 its reverse (52511242303), we get a palindrome (82835453828).

The spelling of 30324211525 in words is "thirty billion, three hundred twenty-four million, two hundred eleven thousand, five hundred twenty-five".

Divisors: 1 5 25 1212968461 6064842305 30324211525