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30302042 = 229522449
BaseRepresentation
bin111001110010…
…1111101011010
32010000111120212
41303211331122
530224131132
63001251122
7515364101
oct163457532
963014525
1030302042
1116117411
12a193aa2
13637c604
14404b038
1529d85b2
hex1ce5f5a

30302042 has 8 divisors (see below), whose sum is σ = 47020500. Its totient is φ = 14628544.

The previous prime is 30302033. The next prime is 30302053. The reversal of 30302042 is 24020303.

It can be written as a sum of positive squares in 2 ways, for example, as 27994681 + 2307361 = 5291^2 + 1519^2 .

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, 261167 + ... + 261282.

Almost surely, 230302042 is an apocalyptic number.

30302042 is a deficient number, since it is larger than the sum of its proper divisors (16718458).

30302042 is a wasteful number, since it uses less digits than its factorization.

30302042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522480.

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 30302042 is about 5504.7290578193. The cubic root of 30302042 is about 311.7625645334.

Adding to 30302042 its reverse (24020303), we get a palindrome (54322345).

The spelling of 30302042 in words is "thirty million, three hundred two thousand, forty-two".

Divisors: 1 2 29 58 522449 1044898 15151021 30302042