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30251074 = 2715713763
BaseRepresentation
bin111001101100…
…1100001000010
32002220220200011
41303121201002
530221013244
63000215134
7515062360
oct163314102
962826604
1030251074
1116092097
12a16a4aa
136362359
144036630
1529c8434
hex1cd9842

30251074 has 16 divisors (see below), whose sum is σ = 52193088. Its totient is φ = 12881232.

The previous prime is 30251069. The next prime is 30251077. The reversal of 30251074 is 47015203.

It is not an unprimeable number, because it can be changed into a prime (30251077) 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, 4684 + ... + 9079.

It is an arithmetic number, because the mean of its divisors is an integer number (3262068).

Almost surely, 230251074 is an apocalyptic number.

30251074 is a deficient number, since it is larger than the sum of its proper divisors (21942014).

30251074 is a wasteful number, since it uses less digits than its factorization.

30251074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13929.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 30251074 is about 5500.0976354970. The cubic root of 30251074 is about 311.5876716812.

Adding to 30251074 its reverse (47015203), we get a palindrome (77266277).

The spelling of 30251074 in words is "thirty million, two hundred fifty-one thousand, seventy-four".

Divisors: 1 2 7 14 157 314 1099 2198 13763 27526 96341 192682 2160791 4321582 15125537 30251074