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30040054 = 21117312591
BaseRepresentation
bin111001010010…
…1111111110110
32002112012012121
41302211333312
530142240204
62551510154
7513223222
oct162457766
962465177
1030040054
1115a585a0
12a08835a
1362ba2a5
143dbd782
152985b54
hex1ca5ff6

30040054 has 32 divisors (see below), whose sum is σ = 53747712. Its totient is φ = 12432000.

The previous prime is 30040013. The next prime is 30040057. The reversal of 30040054 is 45004003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30040057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10299 + ... + 12889.

It is an arithmetic number, because the mean of its divisors is an integer number (1679616).

Almost surely, 230040054 is an apocalyptic number.

30040054 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

30040054 is a deficient number, since it is larger than the sum of its proper divisors (23707658).

30040054 is a wasteful number, since it uses less digits than its factorization.

30040054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2652.

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 30040054 is about 5480.8807686356. The cubic root of 30040054 is about 310.8614747542.

Adding to 30040054 its reverse (45004003), we get a palindrome (75044057).

The spelling of 30040054 in words is "thirty million, forty thousand, fifty-four", and thus it is an eban number.

Divisors: 1 2 11 17 22 31 34 62 187 341 374 527 682 1054 2591 5182 5797 11594 28501 44047 57002 80321 88094 160642 484517 883531 969034 1365457 1767062 2730914 15020027 30040054