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30252195 = 325672271
BaseRepresentation
bin111001101100…
…1110010100011
32002220222012200
41303121302203
530221032240
63000224243
7515065551
oct163316243
962828180
1030252195
1116092a16
12a16b083
136362a0c
144036bd1
1529c8930
hex1cd9ca3

30252195 has 12 divisors (see below), whose sum is σ = 52437216. Its totient is φ = 16134480.

The previous prime is 30252193. The next prime is 30252239. The reversal of 30252195 is 59125203.

It is not a de Polignac number, because 30252195 - 21 = 30252193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30252193) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 336091 + ... + 336180.

It is an arithmetic number, because the mean of its divisors is an integer number (4369768).

Almost surely, 230252195 is an apocalyptic number.

30252195 is a deficient number, since it is larger than the sum of its proper divisors (22185021).

30252195 is a wasteful number, since it uses less digits than its factorization.

30252195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672282 (or 672279 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 30252195 is about 5500.1995418348. The cubic root of 30252195 is about 311.5915204202.

Adding to 30252195 its reverse (59125203), we get a palindrome (89377398).

The spelling of 30252195 in words is "thirty million, two hundred fifty-two thousand, one hundred ninety-five".

Divisors: 1 3 5 9 15 45 672271 2016813 3361355 6050439 10084065 30252195