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1031310056 = 237214917657
BaseRepresentation
bin111101011110001…
…000101011101000
32122212120222102202
4331132020223220
54103003410211
6250200315332
734361663600
oct7536105350
92585528382
101031310056
1148a169567
12249472b48
1313588054a
149ad7bc00
156081853b
hex3d788ae8

1031310056 has 48 divisors (see below), whose sum is σ = 2264638500. Its totient is φ = 438998784.

The previous prime is 1031310043. The next prime is 1031310061. The reversal of 1031310056 is 6500131301.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 848789956 + 182520100 = 29134^2 + 13510^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49580 + ... + 67236.

Almost surely, 21031310056 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 1031310056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1132319250).

1031310056 is an abundant number, since it is smaller than the sum of its proper divisors (1233328444).

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

1031310056 is a wasteful number, since it uses less digits than its factorization.

1031310056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17826 (or 17815 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 1031310056 is about 32114.0165037013. The cubic root of 1031310056 is about 1010.3296169535.

Adding to 1031310056 its reverse (6500131301), we get a palindrome (7531441357).

The spelling of 1031310056 in words is "one billion, thirty-one million, three hundred ten thousand, fifty-six".

Divisors: 1 2 4 7 8 14 28 49 56 98 149 196 298 392 596 1043 1192 2086 4172 7301 8344 14602 17657 29204 35314 58408 70628 123599 141256 247198 494396 865193 988792 1730386 2630893 3460772 5261786 6921544 10523572 18416251 21047144 36832502 73665004 128913757 147330008 257827514 515655028 1031310056