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1081346812 = 2271317174749
BaseRepresentation
bin100000001110100…
…0000101011111100
32210100202002221221
41000131000223330
54203311044222
6255145003124
735540203420
oct10035005374
92710662857
101081346812
11505434957
122621834a4
1314304c5b0
14a3884b80
1564dee0c7
hex40740afc

1081346812 has 48 divisors (see below), whose sum is σ = 2466072000. Its totient is φ = 402619392.

The previous prime is 1081346803. The next prime is 1081346869. The reversal of 1081346812 is 2186431801.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

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, 81187 + ... + 93562.

It is an arithmetic number, because the mean of its divisors is an integer number (51376500).

Almost surely, 21081346812 is an apocalyptic number.

It is an amenable number.

1081346812 is an abundant number, since it is smaller than the sum of its proper divisors (1384725188).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1081346812 is a wasteful number, since it uses less digits than its factorization.

1081346812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174790 (or 174788 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 1081346812 is about 32883.8381579766. The cubic root of 1081346812 is about 1026.4118753141.

The spelling of 1081346812 in words is "one billion, eighty-one million, three hundred forty-six thousand, eight hundred twelve".

Divisors: 1 2 4 7 13 14 17 26 28 34 52 68 91 119 182 221 238 364 442 476 884 1547 3094 6188 174749 349498 698996 1223243 2271737 2446486 2970733 4543474 4892972 5941466 9086948 11882932 15902159 20795131 31804318 38619529 41590262 63608636 77239058 83180524 154478116 270336703 540673406 1081346812