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1331033143 = 11314195203
BaseRepresentation
bin100111101010101…
…1111010000110111
310102202120111012211
41033111133100313
510211221030033
6340024354251
744661411046
oct11725372067
93382514184
101331033143
116233739a0
12311915987
131829b229b
14c8abc55d
157bcc02cd
hex4f55f437

1331033143 has 16 divisors (see below), whose sum is σ = 1535450112. Its totient is φ = 1142424000.

The previous prime is 1331033129. The next prime is 1331033167. The reversal of 1331033143 is 3413301331.

It is not a de Polignac number, because 1331033143 - 213 = 1331024951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331033113) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 33621 + ... + 61582.

It is an arithmetic number, because the mean of its divisors is an integer number (95965632).

Almost surely, 21331033143 is an apocalyptic number.

1331033143 is a deficient number, since it is larger than the sum of its proper divisors (204416969).

1331033143 is a wasteful number, since it uses less digits than its factorization.

1331033143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95286.

The product of its (nonzero) digits is 972, while the sum is 22.

The square root of 1331033143 is about 36483.3269179224. The cubic root of 1331033143 is about 1100.0091302272.

Adding to 1331033143 its reverse (3413301331), we get a palindrome (4744334474).

The spelling of 1331033143 in words is "one billion, three hundred thirty-one million, thirty-three thousand, one hundred forty-three".

Divisors: 1 11 31 41 341 451 1271 13981 95203 1047233 2951293 3903323 32464223 42936553 121003013 1331033143