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807542940 = 223519708371
BaseRepresentation
bin110000001000100…
…010000010011100
32002021112102122210
4300020202002130
53123212333230
6212044240420
726004000411
oct6010420234
92067472583
10807542940
11384922a66
121a6540110
13cb3c4279
1479370108
154ad66eb0
hex3022209c

807542940 has 48 divisors (see below), whose sum is σ = 2380129920. Its totient is φ = 204010560.

The previous prime is 807542851. The next prime is 807542941. The reversal of 807542940 is 49245708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (807542941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 353046 + ... + 355325.

It is an arithmetic number, because the mean of its divisors is an integer number (49586040).

Almost surely, 2807542940 is an apocalyptic number.

It is an amenable number.

807542940 is an abundant number, since it is smaller than the sum of its proper divisors (1572586980).

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

807542940 is a wasteful number, since it uses less digits than its factorization.

807542940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708402 (or 708400 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 807542940 is about 28417.3000124924. The cubic root of 807542940 is about 931.2262469205.

It can be divided in two parts, 8075 and 42940, that added together give a palindrome (51015).

The spelling of 807542940 in words is "eight hundred seven million, five hundred forty-two thousand, nine hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 19 20 30 38 57 60 76 95 114 190 228 285 380 570 1140 708371 1416742 2125113 2833484 3541855 4250226 7083710 8500452 10625565 13459049 14167420 21251130 26918098 40377147 42502260 53836196 67295245 80754294 134590490 161508588 201885735 269180980 403771470 807542940