Search a number
-
+
1002342231 = 321123440203
BaseRepresentation
bin111011101111101…
…000011101010111
32120212002021001100
4323233220131113
54023044422411
6243243401143
733560524362
oct7357503527
92525067040
101002342231
11474883610
1223b8231b3
1312c87a317
149719b0d9
155cee5456
hex3bbe8757

1002342231 has 24 divisors (see below), whose sum is σ = 1648123776. Its totient is φ = 581066640.

The previous prime is 1002342223. The next prime is 1002342233. The reversal of 1002342231 is 1322432001.

It is not a de Polignac number, because 1002342231 - 23 = 1002342223 is a prime.

It is a super-2 number, since 2×10023422312 = 2009379896092114722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002342233) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 217825 + ... + 222378.

It is an arithmetic number, because the mean of its divisors is an integer number (68671824).

Almost surely, 21002342231 is an apocalyptic number.

1002342231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1002342231 is a deficient number, since it is larger than the sum of its proper divisors (645781545).

1002342231 is a wasteful number, since it uses less digits than its factorization.

1002342231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440243 (or 440240 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1002342231 is about 31659.7888653731. The cubic root of 1002342231 is about 1000.7801348979.

Adding to 1002342231 its reverse (1322432001), we get a palindrome (2324774232).

The spelling of 1002342231 in words is "one billion, two million, three hundred forty-two thousand, two hundred thirty-one".

Divisors: 1 3 9 11 23 33 69 99 207 253 759 2277 440203 1320609 3961827 4842233 10124669 14526699 30374007 43580097 91122021 111371359 334114077 1002342231