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1168818080 = 25522133301
BaseRepresentation
bin100010110101010…
…1011111110100000
310000110100002222112
41011222223332200
54343204134310
6311551454452
740651534613
oct10552537640
93013302875
101168818080
1154a849361
12287527428
131581c7541
14b133417a
156c92b705
hex45aabfa0

1168818080 has 48 divisors (see below), whose sum is σ = 2763417384. Its totient is φ = 467174400.

The previous prime is 1168818073. The next prime is 1168818083. The reversal of 1168818080 is 808188611.

It can be written as a sum of positive squares in 4 ways, for example, as 1085570704 + 83247376 = 32948^2 + 9124^2 .

It is a super-2 number, since 2×11688180802 = 2732271408269772800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1168818083) 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, 352430 + ... + 355730.

Almost surely, 21168818080 is an apocalyptic number.

1168818080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1168818080 is an abundant number, since it is smaller than the sum of its proper divisors (1594599304).

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

1168818080 is a wasteful number, since it uses less digits than its factorization.

1168818080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5529 (or 5521 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 41.

The square root of 1168818080 is about 34187.9815139765. The cubic root of 1168818080 is about 1053.3733022630.

The spelling of 1168818080 in words is "one billion, one hundred sixty-eight million, eight hundred eighteen thousand, eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 2213 3301 4426 6602 8852 11065 13204 16505 17704 22130 26408 33010 35408 44260 52816 66020 70816 88520 105632 132040 177040 264080 354080 528160 7305113 14610226 29220452 36525565 58440904 73051130 116881808 146102260 233763616 292204520 584409040 1168818080