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1012331144 = 231113278669
BaseRepresentation
bin111100010101101…
…111001010001000
32121112212202021002
4330111233022020
54033124044034
6244241434132
734041446516
oct7425571210
92545782232
101012331144
1147a486410
1224303b948
13131966b16
149863b4b6
155dd19e7e
hex3c56f288

1012331144 has 32 divisors (see below), whose sum is σ = 2072476800. Its totient is φ = 459750720.

The previous prime is 1012331143. The next prime is 1012331161. The reversal of 1012331144 is 4411332101.

1012331144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×10123311442 = 2049628690224697472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1012331141) 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, 112442 + ... + 121110.

It is an arithmetic number, because the mean of its divisors is an integer number (64764900).

Almost surely, 21012331144 is an apocalyptic number.

It is an amenable number.

1012331144 is an abundant number, since it is smaller than the sum of its proper divisors (1060145656).

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

1012331144 is a wasteful number, since it uses less digits than its factorization.

1012331144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10013 (or 10009 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1012331144 is about 31817.1517267024. The cubic root of 1012331144 is about 1004.0936008987.

Adding to 1012331144 its reverse (4411332101), we get a palindrome (5423663245).

The spelling of 1012331144 in words is "one billion, twelve million, three hundred thirty-one thousand, one hundred forty-four".

Divisors: 1 2 4 8 11 22 44 88 1327 2654 5308 8669 10616 14597 17338 29194 34676 58388 69352 95359 116776 190718 381436 762872 11503763 23007526 46015052 92030104 126541393 253082786 506165572 1012331144