Search a number
-
+
30022011 = 3215721247
BaseRepresentation
bin111001010000…
…1100101111011
32002111021110100
41302201211323
530141201021
62551250443
7513116505
oct162414573
962437410
1030022011
1115a45a88
12a079a23
1362b2006
143db6d75
152980626
hex1ca197b

30022011 has 12 divisors (see below), whose sum is σ = 43643392. Its totient is φ = 19886256.

The previous prime is 30022007. The next prime is 30022067. The reversal of 30022011 is 11022003.

It is a happy number.

It is not a de Polignac number, because 30022011 - 22 = 30022007 is a prime.

It is a super-2 number, since 2×300220112 = 1802642288968242, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30021984 and 30022002.

It is not an unprimeable number, because it can be changed into a prime (30022081) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9211 + ... + 12036.

Almost surely, 230022011 is an apocalyptic number.

30022011 is a deficient number, since it is larger than the sum of its proper divisors (13621381).

30022011 is a wasteful number, since it uses less digits than its factorization.

30022011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21410 (or 21407 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 30022011 is about 5479.2345268295. The cubic root of 30022011 is about 310.7992245674.

Adding to 30022011 its reverse (11022003), we get a palindrome (41044014).

The spelling of 30022011 in words is "thirty million, twenty-two thousand, eleven".

Divisors: 1 3 9 157 471 1413 21247 63741 191223 3335779 10007337 30022011