Search a number
-
+
11928266180 = 2253161931081
BaseRepresentation
bin10110001101111101…
…01110010111000100
31010210022010201001022
423012332232113010
5143412114004210
65251344050312
7601410406145
oct130676562704
933708121038
1011928266180
115071216a26
12238a903998
131181339a8c
148122a7acc
1549c301155
hex2c6fae5c4

11928266180 has 48 divisors (see below), whose sum is σ = 25900008960. Its totient is φ = 4609785600.

The previous prime is 11928266153. The next prime is 11928266191. The reversal of 11928266180 is 8166282911.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 368240 + ... + 399320.

It is an arithmetic number, because the mean of its divisors is an integer number (539583520).

Almost surely, 211928266180 is an apocalyptic number.

11928266180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11928266180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12950004480).

11928266180 is an abundant number, since it is smaller than the sum of its proper divisors (13971742780).

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

11928266180 is a wasteful number, since it uses less digits than its factorization.

11928266180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31740 (or 31738 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 44.

The spelling of 11928266180 in words is "eleven billion, nine hundred twenty-eight million, two hundred sixty-six thousand, one hundred eighty".

Divisors: 1 2 4 5 10 20 31 62 124 155 310 619 620 1238 2476 3095 6190 12380 19189 31081 38378 62162 76756 95945 124324 155405 191890 310810 383780 621620 963511 1927022 3854044 4817555 9635110 19239139 19270220 38478278 76956556 96195695 192391390 384782780 596413309 1192826618 2385653236 2982066545 5964133090 11928266180