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11880008811 = 3211210909099
BaseRepresentation
bin10110001000001101…
…01000110001101011
31010122221022222101100
423010012220301223
5143312240240221
65242501452443
7600253260126
oct130406506153
933587288340
1011880008811
115046a56500
122376711123
131174341918
14809b053bd
15497e6c926
hex2c41a8c6b

11880008811 has 18 divisors (see below), whose sum is σ = 18861833900. Its totient is φ = 7200004680.

The previous prime is 11880008801. The next prime is 11880008839.

11880008811 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 11880008811 - 26 = 11880008747 is a prime.

It is a super-2 number, since 2×118800088112 (a number of 21 digits) contains 22 as substring.

11880008811 is a strobogrammatic number because it is the same when read upside-down.

It is a Duffinian number.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (11880008801) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5453461 + ... + 5455638.

Almost surely, 211880008811 is an apocalyptic number.

11880008811 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11880008811 is a deficient number, since it is larger than the sum of its proper divisors (6981825089).

11880008811 is a wasteful number, since it uses less digits than its factorization.

11880008811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10909127 (or 10909113 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 36.

The spelling of 11880008811 in words is "eleven billion, eight hundred eighty million, eight thousand, eight hundred eleven".

Divisors: 1 3 9 11 33 99 121 363 1089 10909099 32727297 98181891 120000089 360000267 1080000801 1320000979 3960002937 11880008811