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1093492081 = 11257613631
BaseRepresentation
bin100000100101101…
…0101110101110001
32211012121011010201
41001023111311301
54214413221311
6300301155201
736045346363
oct10113256561
92735534121
101093492081
1151127a870
1226625bb01
13145712746
14a5326d33
1565eec9c1
hex412d5d71

1093492081 has 16 divisors (see below), whose sum is σ = 1201396608. Its totient is φ = 987033600.

The previous prime is 1093492079. The next prime is 1093492121. The reversal of 1093492081 is 1802943901.

It is a cyclic number.

It is not a de Polignac number, because 1093492081 - 21 = 1093492079 is a prime.

It is a super-4 number, since 4×10934920814 (a number of 37 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1093492081.

It is not an unprimeable number, because it can be changed into a prime (1093492781) 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, 1732636 + ... + 1733266.

It is an arithmetic number, because the mean of its divisors is an integer number (75087288).

Almost surely, 21093492081 is an apocalyptic number.

1093492081 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1093492081 is a deficient number, since it is larger than the sum of its proper divisors (107904527).

1093492081 is a wasteful number, since it uses less digits than its factorization.

1093492081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1512.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 1093492081 is about 33067.9917896446. The cubic root of 1093492081 is about 1030.2403313257.

The spelling of 1093492081 in words is "one billion, ninety-three million, four hundred ninety-two thousand, eighty-one".

Divisors: 1 11 257 613 631 2827 6743 6941 157541 162167 386803 1732951 1783837 4254833 99408371 1093492081