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30062042 = 215031021
BaseRepresentation
bin111001010101…
…1010111011010
32002120022100222
41302223113122
530143441132
62552200042
7513344303
oct162532732
962508328
1030062042
1115a7306a
12a099022
1362c72ba
143dc77aa
15298c412
hex1cab5da

30062042 has 4 divisors (see below), whose sum is σ = 45093066. Its totient is φ = 15031020.

The previous prime is 30062041. The next prime is 30062059. The reversal of 30062042 is 24026003.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 21353641 + 8708401 = 4621^2 + 2951^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 30062042.

It is not an unprimeable number, because it can be changed into a prime (30062041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7515509 + ... + 7515512.

Almost surely, 230062042 is an apocalyptic number.

30062042 is a deficient number, since it is larger than the sum of its proper divisors (15031024).

30062042 is a wasteful number, since it uses less digits than its factorization.

30062042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15031023.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 30062042 is about 5482.8862837013. The cubic root of 30062042 is about 310.9373019047.

Adding to 30062042 its reverse (24026003), we get a palindrome (54088045).

The spelling of 30062042 in words is "thirty million, sixty-two thousand, forty-two", and thus it is an eban number.

Divisors: 1 2 15031021 30062042