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30250105 = 573179463
BaseRepresentation
bin111001101100…
…1010001111001
32002220212100021
41303121101321
530221000410
63000210441
7515056504
oct163312171
962825307
1030250105
1116091396
12a169a21
136361a92
14403613b
1529c7eda
hex1cd9479

30250105 has 16 divisors (see below), whose sum is σ = 37082880. Its totient is φ = 23683968.

The previous prime is 30250081. The next prime is 30250111. The reversal of 30250105 is 50105203.

It is a cyclic number.

It is not a de Polignac number, because 30250105 - 215 = 30217337 is a prime.

It is a super-2 number, since 2×302501052 = 1830137705022050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65104 + ... + 65566.

It is an arithmetic number, because the mean of its divisors is an integer number (2317680).

Almost surely, 230250105 is an apocalyptic number.

It is an amenable number.

30250105 is a deficient number, since it is larger than the sum of its proper divisors (6832775).

30250105 is a wasteful number, since it uses less digits than its factorization.

30250105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720.

The product of its (nonzero) digits is 150, while the sum is 16.

The square root of 30250105 is about 5500.0095454463. The cubic root of 30250105 is about 311.5843447285.

Adding to 30250105 its reverse (50105203), we get a palindrome (80355308).

The spelling of 30250105 in words is "thirty million, two hundred fifty thousand, one hundred five".

Divisors: 1 5 73 179 365 463 895 2315 13067 33799 65335 82877 168995 414385 6050021 30250105