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30105043 = 67613733
BaseRepresentation
bin111001011010…
…1110111010011
32002122111100121
41302311313103
530201330133
62553131111
7513613543
oct162656723
962574317
1030105043
1115aa2401
12a0b9a97
136310a47
143dd9323
15299a02d
hex1cb5dd3

30105043 has 8 divisors (see below), whose sum is σ = 30645968. Its totient is φ = 29566944.

The previous prime is 30104989. The next prime is 30105059. The reversal of 30105043 is 34050103.

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 30105043 - 217 = 29973971 is a prime.

It is a super-2 number, since 2×301050432 = 1812627228063698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30145043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40705 + ... + 41437.

It is an arithmetic number, because the mean of its divisors is an integer number (3830746).

Almost surely, 230105043 is an apocalyptic number.

30105043 is a deficient number, since it is larger than the sum of its proper divisors (540925).

30105043 is an equidigital number, since it uses as much as digits as its factorization.

30105043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1413.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 30105043 is about 5486.8062659438. The cubic root of 30105043 is about 311.0854870572.

Adding to 30105043 its reverse (34050103), we get a palindrome (64155146).

The spelling of 30105043 in words is "thirty million, one hundred five thousand, forty-three".

Divisors: 1 67 613 733 41071 49111 449329 30105043