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30280058 = 241369269
BaseRepresentation
bin111001110000…
…0100101111010
32002222101102122
41303200211322
530222430213
63001001242
7515243024
oct163404572
962871378
1030280058
1116101946
12a183222
1363725c3
144043014
1529d1d08
hex1ce097a

30280058 has 8 divisors (see below), whose sum is σ = 46528020. Its totient is φ = 14770720.

The previous prime is 30280057. The next prime is 30280067. The reversal of 30280058 is 85008203.

It can be written as a sum of positive squares in 2 ways, for example, as 23843689 + 6436369 = 4883^2 + 2537^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30280051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184553 + ... + 184716.

Almost surely, 230280058 is an apocalyptic number.

30280058 is a deficient number, since it is larger than the sum of its proper divisors (16247962).

30280058 is a wasteful number, since it uses less digits than its factorization.

30280058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369312.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 30280058 is about 5502.7318669912. The cubic root of 30280058 is about 311.6871521641.

The spelling of 30280058 in words is "thirty million, two hundred eighty thousand, fifty-eight".

Divisors: 1 2 41 82 369269 738538 15140029 30280058