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30352249 = 2310912107
BaseRepresentation
bin111001111001…
…0001101111001
32010010001110101
41303302031321
530232232444
63002315401
7515663344
oct163621571
963101411
1030352249
1116151104
12a1b8b61
136399415
14406145b
1529e83d4
hex1cf2379

30352249 has 8 divisors (see below), whose sum is σ = 31965120. Its totient is φ = 28763856.

The previous prime is 30352243. The next prime is 30352261. The reversal of 30352249 is 94225303.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30352249 - 27 = 30352121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30352243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3547 + ... + 8560.

It is an arithmetic number, because the mean of its divisors is an integer number (3995640).

Almost surely, 230352249 is an apocalyptic number.

It is an amenable number.

30352249 is a deficient number, since it is larger than the sum of its proper divisors (1612871).

30352249 is a wasteful number, since it uses less digits than its factorization.

30352249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12239.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 30352249 is about 5509.2875219941. The cubic root of 30352249 is about 311.9346544335.

The spelling of 30352249 in words is "thirty million, three hundred fifty-two thousand, two hundred forty-nine".

Divisors: 1 23 109 2507 12107 278461 1319663 30352249