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1720883053 = 29334916829
BaseRepresentation
bin110011010010010…
…1001011101101101
311102221010220202101
41212210221131231
512011021224203
6442432255101
760434156521
oct14644513555
94387126671
101720883053
118034369aa
124003a1491
132156ab8c6
1412479dd81
15a112b41d
hex6692976d

1720883053 has 8 divisors (see below), whose sum is σ = 1731807000. Its totient is φ = 1709994048.

The previous prime is 1720883027. The next prime is 1720883057. The reversal of 1720883053 is 3503880271.

It can be written as a sum of positive squares in 4 ways, for example, as 350550729 + 1370332324 = 18723^2 + 37018^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1720883053 is a prime.

It is a super-2 number, since 2×17208830532 = 5922876964205201618, 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 (1720883057) 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 7 ways as a sum of consecutive naturals, for example, 93843 + ... + 110671.

It is an arithmetic number, because the mean of its divisors is an integer number (216475875).

Almost surely, 21720883053 is an apocalyptic number.

It is an amenable number.

1720883053 is a deficient number, since it is larger than the sum of its proper divisors (10923947).

1720883053 is a wasteful number, since it uses less digits than its factorization.

1720883053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17471.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 1720883053 is about 41483.5274898363. The cubic root of 1720883053 is about 1198.3502916561.

The spelling of 1720883053 in words is "one billion, seven hundred twenty million, eight hundred eighty-three thousand, fifty-three".

Divisors: 1 293 349 16829 102257 4930897 5873321 1720883053