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8385030025 = 52734594537
BaseRepresentation
bin1111100111100100…
…10110011110001001
3210122100220122210121
413303302112132021
5114133031430100
63504012143241
7414534402451
oct76362263611
923570818717
108385030025
113613149189
121760167b21
13a38242938
14597892d61
1534120351a
hex1f3c96789

8385030025 has 12 divisors (see below), whose sum is σ = 10539870172. Its totient is φ = 6616131840.

The previous prime is 8385030013. The next prime is 8385030047. The reversal of 8385030025 is 5200305838.

It can be written as a sum of positive squares in 6 ways, for example, as 334633849 + 8050396176 = 18293^2 + 89724^2 .

It is not a de Polignac number, because 8385030025 - 217 = 8384898953 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 2295444 + ... + 2299093.

Almost surely, 28385030025 is an apocalyptic number.

It is an amenable number.

8385030025 is a deficient number, since it is larger than the sum of its proper divisors (2154840147).

8385030025 is a wasteful number, since it uses less digits than its factorization.

8385030025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4594620 (or 4594615 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 8385030025 is about 91569.8095717142. The cubic root of 8385030025 is about 2031.5844219087.

The spelling of 8385030025 in words is "eight billion, three hundred eighty-five million, thirty thousand, twenty-five".

Divisors: 1 5 25 73 365 1825 4594537 22972685 114863425 335401201 1677006005 8385030025