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1168908740 = 225106954673
BaseRepresentation
bin100010110101100…
…0010000111000100
310000110111201100022
41011223002013010
54343220034430
6311553434312
740652363126
oct10553020704
93013451308
101168908740
1154a90048a
1228756b998
1315822989c
14b1359216
156c9484e5
hex45ac21c4

1168908740 has 24 divisors (see below), whose sum is σ = 2457049560. Its totient is φ = 467117568.

The previous prime is 1168908707. The next prime is 1168908743. The reversal of 1168908740 is 478098611.

It can be written as a sum of positive squares in 4 ways, for example, as 11276164 + 1157632576 = 3358^2 + 34024^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1168908691 and 1168908700.

It is not an unprimeable number, because it can be changed into a prime (1168908743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5957 + ... + 48716.

It is an arithmetic number, because the mean of its divisors is an integer number (102377065).

Almost surely, 21168908740 is an apocalyptic number.

1168908740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1168908740 is an abundant number, since it is smaller than the sum of its proper divisors (1288140820).

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

1168908740 is a wasteful number, since it uses less digits than its factorization.

1168908740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55751 (or 55749 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 44.

The square root of 1168908740 is about 34189.3073928092. The cubic root of 1168908740 is about 1053.4005367136.

The spelling of 1168908740 in words is "one billion, one hundred sixty-eight million, nine hundred eight thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 1069 2138 4276 5345 10690 21380 54673 109346 218692 273365 546730 1093460 58445437 116890874 233781748 292227185 584454370 1168908740