Search a number
-
+
30362690 = 253036269
BaseRepresentation
bin111001111010…
…0110001000010
32010010120210002
41303310301002
530233101230
63002440002
7516035651
oct163646102
963116702
1030362690
1116158a36
12a203002
1363a10b7
144065198
1529eb545
hex1cf4c42

30362690 has 8 divisors (see below), whose sum is σ = 54652860. Its totient is φ = 12145072.

The previous prime is 30362677. The next prime is 30362699. The reversal of 30362690 is 9626303.

It can be written as a sum of positive squares in 2 ways, for example, as 28504921 + 1857769 = 5339^2 + 1363^2 .

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

It is a super-2 number, since 2×303626902 = 1843785888072200, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30362699) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1518125 + ... + 1518144.

Almost surely, 230362690 is an apocalyptic number.

30362690 is a deficient number, since it is larger than the sum of its proper divisors (24290170).

30362690 is a wasteful number, since it uses less digits than its factorization.

30362690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3036276.

The product of its (nonzero) digits is 5832, while the sum is 29.

The square root of 30362690 is about 5510.2350222109. The cubic root of 30362690 is about 311.9704182451.

Adding to 30362690 its reverse (9626303), we get a palindrome (39988993).

The spelling of 30362690 in words is "thirty million, three hundred sixty-two thousand, six hundred ninety".

Divisors: 1 2 5 10 3036269 6072538 15181345 30362690