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3111424340 = 225753720641
BaseRepresentation
bin1011100101110100…
…1001000101010100
322000211200201210112
42321131021011110
522333011034330
61232424342152
7140050445663
oct27135110524
98024621715
103111424340
111357355182
1272a014958
133a77c7cbb
1421732cdda
15133253795
hexb9749154

3111424340 has 24 divisors (see below), whose sum is σ = 6535174632. Its totient is φ = 1244344320.

The previous prime is 3111424333. The next prime is 3111424367. The reversal of 3111424340 is 434241113.

It can be written as a sum of positive squares in 4 ways, for example, as 29398084 + 3082026256 = 5422^2 + 55516^2 .

It is a super-4 number, since 4×31114243404 (a number of 39 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140420 + ... + 161060.

It is an arithmetic number, because the mean of its divisors is an integer number (272298943).

Almost surely, 23111424340 is an apocalyptic number.

It is an amenable number.

3111424340 is an abundant number, since it is smaller than the sum of its proper divisors (3423750292).

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

3111424340 is a wasteful number, since it uses less digits than its factorization.

3111424340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28187 (or 28185 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 3111424340 is about 55780.1428825707. The cubic root of 3111424340 is about 1459.8887042202. Note that the first 3 decimals are identical.

Adding to 3111424340 its reverse (434241113), we get a palindrome (3545665453).

The spelling of 3111424340 in words is "three billion, one hundred eleven million, four hundred twenty-four thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 7537 15074 20641 30148 37685 41282 75370 82564 103205 150740 206410 412820 155571217 311142434 622284868 777856085 1555712170 3111424340