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30525005 = 57872143
BaseRepresentation
bin111010001110…
…0011001001101
32010102211102202
41310130121031
530303300010
63010131245
7520313120
oct164343115
963384382
1030525005
1116259985
12a280b25
136429c44
1440a83b7
152a2e6a5
hex1d1c64d

30525005 has 8 divisors (see below), whose sum is σ = 41862912. Its totient is φ = 20931408.

The previous prime is 30524983. The next prime is 30525041. The reversal of 30525005 is 50052503.

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 30525005 - 210 = 30523981 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 436037 + ... + 436106.

It is an arithmetic number, because the mean of its divisors is an integer number (5232864).

Almost surely, 230525005 is an apocalyptic number.

30525005 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30525005 is a deficient number, since it is larger than the sum of its proper divisors (11337907).

30525005 is an equidigital number, since it uses as much as digits as its factorization.

30525005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872155.

The product of its (nonzero) digits is 750, while the sum is 20.

The square root of 30525005 is about 5524.9438911178. The cubic root of 30525005 is about 312.5253483438.

Adding to 30525005 its reverse (50052503), we get a palindrome (80577508).

The spelling of 30525005 in words is "thirty million, five hundred twenty-five thousand, five".

Divisors: 1 5 7 35 872143 4360715 6105001 30525005