Search a number
-
+
30422130 = 2351317741
BaseRepresentation
bin111010000001…
…1010001110010
32010020121022120
41310003101302
530242002010
63004015110
7516404154
oct164032162
963217276
1030422130
1116199662
12a231496
1363c217b
14407cad4
152a0de70
hex1d03472

30422130 has 32 divisors (see below), whose sum is σ = 73579968. Its totient is φ = 8049600.

The previous prime is 30422101. The next prime is 30422137. The reversal of 30422130 is 3122403.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (30422137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60 + ... + 7800.

It is an arithmetic number, because the mean of its divisors is an integer number (2299374).

Almost surely, 230422130 is an apocalyptic number.

30422130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30422130 is an abundant number, since it is smaller than the sum of its proper divisors (43157838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30422130 is a wasteful number, since it uses less digits than its factorization.

30422130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7882.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 30422130 is about 5515.6259844192. The cubic root of 30422130 is about 312.1738634837.

Adding to 30422130 its reverse (3122403), we get a palindrome (33544533).

The spelling of 30422130 in words is "thirty million, four hundred twenty-two thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 131 262 393 655 786 1310 1965 3930 7741 15482 23223 38705 46446 77410 116115 232230 1014071 2028142 3042213 5070355 6084426 10140710 15211065 30422130