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30040262 = 2711531861
BaseRepresentation
bin111001010011…
…0000011000110
32002112012111022
41302212003012
530142242022
62551511142
7513223640
oct162460306
962465438
1030040262
1115a5876a
12a0884b2
1362ba405
143dbd890
152985c42
hex1ca60c6

30040262 has 16 divisors (see below), whose sum is σ = 51569952. Its totient is φ = 12856320.

The previous prime is 30040261. The next prime is 30040267. The reversal of 30040262 is 26204003.

It is a self number, because there is not a number n which added to its sum of digits gives 30040262.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30040261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15212 + ... + 17072.

It is an arithmetic number, because the mean of its divisors is an integer number (3223122).

Almost surely, 230040262 is an apocalyptic number.

30040262 is a deficient number, since it is larger than the sum of its proper divisors (21529690).

30040262 is a wasteful number, since it uses less digits than its factorization.

30040262 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3023.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 30040262 is about 5480.8997436552. The cubic root of 30040262 is about 310.8621922300.

Adding to 30040262 its reverse (26204003), we get a palindrome (56244265).

The spelling of 30040262 in words is "thirty million, forty thousand, two hundred sixty-two".

Divisors: 1 2 7 14 1153 1861 2306 3722 8071 13027 16142 26054 2145733 4291466 15020131 30040262