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BaseRepresentation
bin111110110010111…
…101001111010111
32201102102122122011
4332302331033113
54124201423211
6252313045051
735051663011
oct7662751727
92642378564
101053545431
114a0776304
122549b6787
1313a367283
149dcc91b1
156275b921
hex3ecbd3d7

1053545431 has 4 divisors (see below), whose sum is σ = 1053704872. Its totient is φ = 1053385992.

The previous prime is 1053545419. The next prime is 1053545489. The reversal of 1053545431 is 1345453501.

Adding to 1053545431 its reverse (1345453501), we get a palindrome (2398998932).

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1053545431 - 219 = 1053021143 is a prime.

It is a super-3 number, since 3×10535454313 (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1053545393 and 1053545402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1053545531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69360 + ... + 83173.

It is an arithmetic number, because the mean of its divisors is an integer number (263426218).

Almost surely, 21053545431 is an apocalyptic number.

1053545431 is a deficient number, since it is larger than the sum of its proper divisors (159441).

1053545431 is an equidigital number, since it uses as much as digits as its factorization.

1053545431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159440.

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 1053545431 is about 32458.3645767928. The cubic root of 1053545431 is about 1017.5390599296.

The spelling of 1053545431 in words is "one billion, fifty-three million, five hundred forty-five thousand, four hundred thirty-one".

Divisors: 1 6907 152533 1053545431