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3143031040 = 28510692297
BaseRepresentation
bin1011101101010110…
…1101100100000000
322010001011112001001
42323111231210000
522414103443130
61235514021344
7140613215542
oct27325554400
98101145031
103143031040
111373182816
12738717854
133b12133a6
1421b5d9692
15135de86ca
hexbb56d900

3143031040 has 72 divisors (see below), whose sum is σ = 7538864760. Its totient is φ = 1255489536.

The previous prime is 3143030959. The next prime is 3143031041. The reversal of 3143031040 is 401303413.

It can be written as a sum of positive squares in 4 ways, for example, as 258052096 + 2884978944 = 16064^2 + 53712^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3143030999 and 3143031017.

It is not an unprimeable number, because it can be changed into a prime (3143031041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1367172 + ... + 1369468.

It is an arithmetic number, because the mean of its divisors is an integer number (104706455).

Almost surely, 23143031040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3143031040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3769432380).

3143031040 is an abundant number, since it is smaller than the sum of its proper divisors (4395833720).

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

3143031040 is a wasteful number, since it uses less digits than its factorization.

3143031040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3387 (or 3373 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 3143031040 is about 56062.7419950184. The cubic root of 3143031040 is about 1464.8153758651.

Adding to 3143031040 its reverse (401303413), we get a palindrome (3544334453).

The spelling of 3143031040 in words is "three billion, one hundred forty-three million, thirty-one thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 160 256 320 640 1069 1280 2138 2297 4276 4594 5345 8552 9188 10690 11485 17104 18376 21380 22970 34208 36752 42760 45940 68416 73504 85520 91880 136832 147008 171040 183760 273664 294016 342080 367520 588032 684160 735040 1368320 1470080 2455493 2940160 4910986 9821972 12277465 19643944 24554930 39287888 49109860 78575776 98219720 157151552 196439440 314303104 392878880 628606208 785757760 1571515520 3143031040