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1031141605 = 513109714461
BaseRepresentation
bin111101011101011…
…111100011100101
32122212021102100211
4331131133203211
54102433012410
6250152535421
734360362514
oct7535374345
92585242324
101031141605
1148a063a4a
122493b1571
13135821980
149ad3667b
15607d368a
hex3d75f8e5

1031141605 has 16 divisors (see below), whose sum is σ = 1333859184. Its totient is φ = 760711680.

The previous prime is 1031141581. The next prime is 1031141663. The reversal of 1031141605 is 5061411301.

It can be written as a sum of positive squares in 8 ways, for example, as 386083201 + 645058404 = 19649^2 + 25398^2 .

It is not a de Polignac number, because 1031141605 - 29 = 1031141093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64075 + ... + 78535.

It is an arithmetic number, because the mean of its divisors is an integer number (83366199).

Almost surely, 21031141605 is an apocalyptic number.

It is an amenable number.

1031141605 is a deficient number, since it is larger than the sum of its proper divisors (302717579).

1031141605 is a wasteful number, since it uses less digits than its factorization.

1031141605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15576.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 1031141605 is about 32111.3936944506. The cubic root of 1031141605 is about 1010.2746059183.

Adding to 1031141605 its reverse (5061411301), we get a palindrome (6092552906).

The spelling of 1031141605 in words is "one billion, thirty-one million, one hundred forty-one thousand, six hundred five".

Divisors: 1 5 13 65 1097 5485 14261 14461 71305 72305 187993 939965 15863717 79318585 206228321 1031141605