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1031012112 = 243131652263
BaseRepresentation
bin111101011100111…
…111111100010000
32122212000211201210
4331130333330100
54102414341422
6250150100120
734356313134
oct7534777420
92585024653
101031012112
11489a85729
1224934a640
131357a7a50
149ad013c4
15607aa10c
hex3d73ff10

1031012112 has 40 divisors (see below), whose sum is σ = 2868330304. Its totient is φ = 317234304.

The previous prime is 1031012093. The next prime is 1031012123. The reversal of 1031012112 is 2112101301.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 825508 + ... + 826755.

Almost surely, 21031012112 is an apocalyptic number.

1031012112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1031012112 is an abundant number, since it is smaller than the sum of its proper divisors (1837318192).

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

1031012112 is a wasteful number, since it uses less digits than its factorization.

1031012112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1652287 (or 1652281 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 1031012112 is about 32109.3773218977. The cubic root of 1031012112 is about 1010.2323133222.

Adding to 1031012112 its reverse (2112101301), we get a palindrome (3143113413).

It can be divided in two parts, 10310 and 12112, that added together give a palindrome (22422).

The spelling of 1031012112 in words is "one billion, thirty-one million, twelve thousand, one hundred twelve".

Divisors: 1 2 3 4 6 8 12 13 16 24 26 39 48 52 78 104 156 208 312 624 1652263 3304526 4956789 6609052 9913578 13218104 19827156 21479419 26436208 39654312 42958838 64438257 79308624 85917676 128876514 171835352 257753028 343670704 515506056 1031012112