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30055252 = 22172915241
BaseRepresentation
bin111001010100…
…1101101010100
32002112222001111
41302221231110
530143232002
62552104404
7513315433
oct162515524
962488044
1030055252
1115a68a57
12a095104
1362c4196
143dc511a
15298a3d7
hex1ca9b54

30055252 has 24 divisors (see below), whose sum is σ = 57614760. Its totient is φ = 13655040.

The previous prime is 30055229. The next prime is 30055253. The reversal of 30055252 is 25255003.

It can be written as a sum of positive squares in 4 ways, for example, as 12716356 + 17338896 = 3566^2 + 4164^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30055253) 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 7 ways as a sum of consecutive naturals, for example, 5649 + ... + 9592.

It is an arithmetic number, because the mean of its divisors is an integer number (2400615).

Almost surely, 230055252 is an apocalyptic number.

It is an amenable number.

30055252 is a deficient number, since it is larger than the sum of its proper divisors (27559508).

30055252 is a wasteful number, since it uses less digits than its factorization.

30055252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15291 (or 15289 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 22.

The square root of 30055252 is about 5482.2670493145. The cubic root of 30055252 is about 310.9138900636.

The spelling of 30055252 in words is "thirty million, fifty-five thousand, two hundred fifty-two".

Divisors: 1 2 4 17 29 34 58 68 116 493 986 1972 15241 30482 60964 259097 441989 518194 883978 1036388 1767956 7513813 15027626 30055252