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30074690 = 253007469
BaseRepresentation
bin111001010111…
…0011101000010
32002120221201102
41302232131002
530144342230
62552334402
7513426212
oct162563502
962527642
1030074690
1115a81618
12a0a4402
1362ccc99
143dcc242
152991045
hex1cae742

30074690 has 8 divisors (see below), whose sum is σ = 54134460. Its totient is φ = 12029872.

The previous prime is 30074659. The next prime is 30074699. The reversal of 30074690 is 9647003.

It can be written as a sum of positive squares in 2 ways, for example, as 27112849 + 2961841 = 5207^2 + 1721^2 .

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

It is a super-2 number, since 2×300746902 = 1808973957192200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30074699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1503725 + ... + 1503744.

Almost surely, 230074690 is an apocalyptic number.

30074690 is a deficient number, since it is larger than the sum of its proper divisors (24059770).

30074690 is a wasteful number, since it uses less digits than its factorization.

30074690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3007476.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 30074690 is about 5484.0395695144. The cubic root of 30074690 is about 310.9809026641.

The spelling of 30074690 in words is "thirty million, seventy-four thousand, six hundred ninety".

Divisors: 1 2 5 10 3007469 6014938 15037345 30074690