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30235245 = 3541211233
BaseRepresentation
bin111001101010…
…1101001101101
32002220002221220
41303111221231
530220011440
63000013553
7514665255
oct163255155
962802856
1030235245
1116081207
12a1612b9
1363580a1
144030965
1529c38d0
hex1cd5a6d

30235245 has 32 divisors (see below), whose sum is σ = 50004864. Its totient is φ = 15590400.

The previous prime is 30235243. The next prime is 30235267. The reversal of 30235245 is 54253203.

It is not a de Polignac number, because 30235245 - 21 = 30235243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30235243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 129649 + ... + 129881.

It is an arithmetic number, because the mean of its divisors is an integer number (1562652).

Almost surely, 230235245 is an apocalyptic number.

It is an amenable number.

30235245 is a deficient number, since it is larger than the sum of its proper divisors (19769619).

30235245 is a wasteful number, since it uses less digits than its factorization.

30235245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493.

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 30235245 is about 5498.6584727550. The cubic root of 30235245 is about 311.5333156853.

Adding to 30235245 its reverse (54253203), we get a palindrome (84488448).

The spelling of 30235245 in words is "thirty million, two hundred thirty-five thousand, two hundred forty-five".

Divisors: 1 3 5 15 41 123 205 211 233 615 633 699 1055 1165 3165 3495 8651 9553 25953 28659 43255 47765 49163 129765 143295 147489 245815 737445 2015683 6047049 10078415 30235245