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30274120 = 235756853
BaseRepresentation
bin111001101111…
…1001001001000
32002222002021201
41303133021020
530222232440
63000513544
7515216512
oct163371110
962862251
1030274120
11160a8438
12a17b8b4
13636c9a6
144040bb2
1529d019a
hex1cdf248

30274120 has 16 divisors (see below), whose sum is σ = 68116860. Its totient is φ = 12109632.

The previous prime is 30274099. The next prime is 30274121. The reversal of 30274120 is 2147203.

It can be written as a sum of positive squares in 2 ways, for example, as 30272004 + 2116 = 5502^2 + 46^2 .

It is not an unprimeable number, because it can be changed into a prime (30274121) 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, 378387 + ... + 378466.

Almost surely, 230274120 is an apocalyptic number.

It is an amenable number.

30274120 is an abundant number, since it is smaller than the sum of its proper divisors (37842740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30274120 is a wasteful number, since it uses less digits than its factorization.

30274120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756864 (or 756860 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 30274120 is about 5502.1922903512. The cubic root of 30274120 is about 311.6667766053. Note that the first 3 decimals are identical.

The spelling of 30274120 in words is "thirty million, two hundred seventy-four thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 756853 1513706 3027412 3784265 6054824 7568530 15137060 30274120