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30040011 = 337315241
BaseRepresentation
bin111001010010…
…1111111001011
32002112012011000
41302211333023
530142240021
62551510043
7513223131
oct162457713
962465130
1030040011
1115a58561
12a088323
1362ba271
143dbd751
152985b26
hex1ca5fcb

30040011 has 16 divisors (see below), whose sum is σ = 45116320. Its totient is φ = 19751040.

The previous prime is 30040009. The next prime is 30040013. The reversal of 30040011 is 11004003.

It is an interprime number because it is at equal distance from previous prime (30040009) and next prime (30040013).

It is not a de Polignac number, because 30040011 - 21 = 30040009 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30039975 and 30040002.

It is not an unprimeable number, because it can be changed into a prime (30040013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5650 + ... + 9591.

It is an arithmetic number, because the mean of its divisors is an integer number (2819770).

Almost surely, 230040011 is an apocalyptic number.

30040011 is a deficient number, since it is larger than the sum of its proper divisors (15076309).

30040011 is a wasteful number, since it uses less digits than its factorization.

30040011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15323 (or 15317 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 30040011 is about 5480.8768459070. The cubic root of 30040011 is about 310.8613264294.

Adding to 30040011 its reverse (11004003), we get a palindrome (41044014).

The spelling of 30040011 in words is "thirty million, forty thousand, eleven".

Divisors: 1 3 9 27 73 219 657 1971 15241 45723 137169 411507 1112593 3337779 10013337 30040011