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1061307893 = 4722581019
BaseRepresentation
bin111111010000100…
…100010111110101
32201222001000201202
4333100210113311
54133143323033
6253151302245
735204653052
oct7720442765
92658030652
101061307893
114a5098368
1225751a985
1313bb54549
14a0d4a029
15632918e8
hex3f4245f5

1061307893 has 4 divisors (see below), whose sum is σ = 1083888960. Its totient is φ = 1038726828.

The previous prime is 1061307869. The next prime is 1061307913. The reversal of 1061307893 is 3987031601.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1061307893 is a prime.

It is a super-2 number, since 2×10613078932 = 2252748887488198898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1061306893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11290463 + ... + 11290556.

It is an arithmetic number, because the mean of its divisors is an integer number (270972240).

Almost surely, 21061307893 is an apocalyptic number.

It is an amenable number.

1061307893 is a deficient number, since it is larger than the sum of its proper divisors (22581067).

1061307893 is an equidigital number, since it uses as much as digits as its factorization.

1061307893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22581066.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 1061307893 is about 32577.7208073248. The cubic root of 1061307893 is about 1020.0320036735.

The spelling of 1061307893 in words is "one billion, sixty-one million, three hundred seven thousand, eight hundred ninety-three".

Divisors: 1 47 22581019 1061307893