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30242170 = 257432031
BaseRepresentation
bin111001101011…
…1010101111010
32002220110110101
41303113111322
530220222140
63000110014
7515024410
oct163272572
962813411
1030242170
1116086432
12a16530a
13635b29a
1440332b0
1529c599a
hex1cd757a

30242170 has 16 divisors (see below), whose sum is σ = 62212608. Its totient is φ = 10368720.

The previous prime is 30242131. The next prime is 30242189. The reversal of 30242170 is 7124203.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 215946 + ... + 216085.

It is an arithmetic number, because the mean of its divisors is an integer number (3888288).

Almost surely, 230242170 is an apocalyptic number.

30242170 is an abundant number, since it is smaller than the sum of its proper divisors (31970438).

30242170 is a wasteful number, since it uses less digits than its factorization.

30242170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432045.

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

The square root of 30242170 is about 5499.2881357499. The cubic root of 30242170 is about 311.5570981234.

Adding to 30242170 its reverse (7124203), we get a palindrome (37366373).

The spelling of 30242170 in words is "thirty million, two hundred forty-two thousand, one hundred seventy".

Divisors: 1 2 5 7 10 14 35 70 432031 864062 2160155 3024217 4320310 6048434 15121085 30242170