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1081255351 = 11474434721
BaseRepresentation
bin100000001110010…
…1010010110110111
32210100120110111111
41000130222112313
54203300132401
6255143015451
735536342651
oct10034522667
92710513444
101081255351
11505382170
1226213a587
13143019a87
14a385d6d1
1564dd1e51
hex4072a5b7

1081255351 has 16 divisors (see below), whose sum is σ = 1207623168. Its totient is φ = 959670400.

The previous prime is 1081255333. The next prime is 1081255367. The reversal of 1081255351 is 1535521801.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1081255351 is a prime.

It is a super-2 number, since 2×10812553512 = 2338226268132266402, 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 (1081255051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 226671 + ... + 231391.

It is an arithmetic number, because the mean of its divisors is an integer number (75476448).

Almost surely, 21081255351 is an apocalyptic number.

1081255351 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1081255351 is a deficient number, since it is larger than the sum of its proper divisors (126367817).

1081255351 is a wasteful number, since it uses less digits than its factorization.

1081255351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5222.

The product of its (nonzero) digits is 6000, while the sum is 31.

The square root of 1081255351 is about 32882.4474606134. The cubic root of 1081255351 is about 1026.3829363088.

The spelling of 1081255351 in words is "one billion, eighty-one million, two hundred fifty-five thousand, three hundred fifty-one".

Divisors: 1 11 47 443 517 4721 4873 20821 51931 221887 229031 2091403 2440757 23005433 98295941 1081255351