Search a number
-
+
30004978025105 = 56000995605021
BaseRepresentation
bin1101101001010000101000…
…00011101000001010010001
310221020110002111201122011022
412310220110003220022101
512413100143333300410
6143452032511325225
76214534220041016
oct664502403501221
9127213074648138
1030004978025105
119619048959a96
1234471ba520815
1313985c3875835
1475a36a56b70d
15370771d3e455
hex1b4a140e8291

30004978025105 has 4 divisors (see below), whose sum is σ = 36005973630132. Its totient is φ = 24003982420080.

The previous prime is 30004978025093. The next prime is 30004978025107. The reversal of 30004978025105 is 50152087940003.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8780151249424 + 21224826775681 = 2963132^2 + 4607041^2 .

It is not a de Polignac number, because 30004978025105 - 210 = 30004978024081 is a prime.

It is a super-2 number, since 2×300049780251052 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30004978025107) 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 3 ways as a sum of consecutive naturals, for example, 3000497802506 + ... + 3000497802515.

It is an arithmetic number, because the mean of its divisors is an integer number (9001493407533).

Almost surely, 230004978025105 is an apocalyptic number.

It is an amenable number.

30004978025105 is a deficient number, since it is larger than the sum of its proper divisors (6000995605027).

30004978025105 is an equidigital number, since it uses as much as digits as its factorization.

30004978025105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6000995605026.

The product of its (nonzero) digits is 302400, while the sum is 44.

The spelling of 30004978025105 in words is "thirty trillion, four billion, nine hundred seventy-eight million, twenty-five thousand, one hundred five".

Divisors: 1 5 6000995605021 30004978025105