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841696145 = 52916213581
BaseRepresentation
bin110010001010110…
…100001110010001
32011122210121001022
4302022310032101
53210433234040
6215304245225
726600204423
oct6212641621
92148717038
10841696145
113a212a854
121b5a70815
131054c1774
147db00813
154dd616b5
hex322b4391

841696145 has 16 divisors (see below), whose sum is σ = 1045800720. Its totient is φ = 649555200.

The previous prime is 841696139. The next prime is 841696151. The reversal of 841696145 is 541696148.

It is a Cunningham number, because it is equal to 290122+1.

It is an interprime number because it is at equal distance from previous prime (841696139) and next prime (841696151).

It can be written as a sum of positive squares in 8 ways, for example, as 77228944 + 764467201 = 8788^2 + 27649^2 .

It is not a de Polignac number, because 841696145 - 216 = 841630609 is a prime.

It is a super-5 number, since 5×8416961455 (a number of 46 digits) contains 55555 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 841696096 and 841696105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 233255 + ... + 236835.

It is an arithmetic number, because the mean of its divisors is an integer number (65362545).

Almost surely, 2841696145 is an apocalyptic number.

It is an amenable number.

841696145 is a deficient number, since it is larger than the sum of its proper divisors (204104575).

841696145 is a wasteful number, since it uses less digits than its factorization.

841696145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5236.

The product of its digits is 207360, while the sum is 44.

The square root of 841696145 is about 29012.0000172342. Note that the first 4 decimals coincide. The cubic root of 841696145 is about 944.1734399703.

The spelling of 841696145 in words is "eight hundred forty-one million, six hundred ninety-six thousand, one hundred forty-five".

Divisors: 1 5 29 145 1621 3581 8105 17905 47009 103849 235045 519245 5804801 29024005 168339229 841696145