Search a number
-
+
1231424030 = 25934113183
BaseRepresentation
bin100100101100110…
…0000101000011110
310011211010211012102
41021121200220132
510010221032110
6322105405102
742341634344
oct11131405036
93154124172
101231424030
1158211a111
122a4499792
13168177695
14b978d994
15731965a5
hex49660a1e

1231424030 has 16 divisors (see below), whose sum is σ = 2216968704. Its totient is φ = 492479520.

The previous prime is 1231424027. The next prime is 1231424039. The reversal of 1231424030 is 304241321.

It is a super-2 number, since 2×12314240302 = 3032810283322881800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1231423993 and 1231424011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231424039) 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 7 ways as a sum of consecutive naturals, for example, 86819 + ... + 100001.

It is an arithmetic number, because the mean of its divisors is an integer number (138560544).

Almost surely, 21231424030 is an apocalyptic number.

1231424030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1231424030 is a deficient number, since it is larger than the sum of its proper divisors (985544674).

1231424030 is a wasteful number, since it uses less digits than its factorization.

1231424030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22531.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1231424030 is about 35091.6518562464. The cubic root of 1231424030 is about 1071.8545965398.

Adding to 1231424030 its reverse (304241321), we get a palindrome (1535665351).

The spelling of 1231424030 in words is "one billion, two hundred thirty-one million, four hundred twenty-four thousand, thirty".

Divisors: 1 2 5 10 9341 13183 18682 26366 46705 65915 93410 131830 123142403 246284806 615712015 1231424030