Search a number
-
+
30166400525 = 5210311715107
BaseRepresentation
bin11100000110000011…
…101011111000001101
32212212100101220222112
4130012003223320031
5443240044304100
621505214353405
72115360113402
oct340603537015
985770356875
1030166400525
1111880168228
125a1a7bb865
132ac99b6c51
1416625a22a9
15bb8547b35
hex7060ebe0d

30166400525 has 12 divisors (see below), whose sum is σ = 37769508192. Its totient is φ = 23898816240.

The previous prime is 30166400519. The next prime is 30166400527. The reversal of 30166400525 is 52500466103.

It is not a de Polignac number, because 30166400525 - 28 = 30166400269 is a prime.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30166400491 and 30166400500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30166400527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5854979 + ... + 5860128.

It is an arithmetic number, because the mean of its divisors is an integer number (3147459016).

Almost surely, 230166400525 is an apocalyptic number.

It is an amenable number.

30166400525 is a deficient number, since it is larger than the sum of its proper divisors (7603107667).

30166400525 is a wasteful number, since it uses less digits than its factorization.

30166400525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11715220 (or 11715215 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

Adding to 30166400525 its reverse (52500466103), we get a palindrome (82666866628).

The spelling of 30166400525 in words is "thirty billion, one hundred sixty-six million, four hundred thousand, five hundred twenty-five".

Divisors: 1 5 25 103 515 2575 11715107 58575535 292877675 1206656021 6033280105 30166400525