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30268618 = 253285553
BaseRepresentation
bin111001101110…
…1110011001010
32002221210201221
41303131303022
530222043433
63000432254
7515164462
oct163356312
962853657
1030268618
11160a4296
12a17868a
13636a333
14403cba2
1529cd72d
hex1cddcca

30268618 has 8 divisors (see below), whose sum is σ = 46259748. Its totient is φ = 14848704.

The previous prime is 30268607. The next prime is 30268631. The reversal of 30268618 is 81686203.

It can be written as a sum of positive squares in 2 ways, for example, as 28869129 + 1399489 = 5373^2 + 1183^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142671 + ... + 142882.

Almost surely, 230268618 is an apocalyptic number.

30268618 is a deficient number, since it is larger than the sum of its proper divisors (15991130).

30268618 is a wasteful number, since it uses less digits than its factorization.

30268618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285608.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 30268618 is about 5501.6922851065. The cubic root of 30268618 is about 311.6478947518.

The spelling of 30268618 in words is "thirty million, two hundred sixty-eight thousand, six hundred eighteen".

Divisors: 1 2 53 106 285553 571106 15134309 30268618