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11580972 = 22313611217
BaseRepresentation
bin101100001011…
…011000101100
3210210101002220
4230023120230
510431042342
61052115340
7200302524
oct54133054
923711086
1011580972
11659aa57
123a65b50
132526360
141776684
15103b5ec
hexb0b62c

11580972 has 48 divisors (see below), whose sum is σ = 29602272. Its totient is φ = 3502080.

The previous prime is 11580971. The next prime is 11580979. The reversal of 11580972 is 27908511.

It is not an unprimeable number, because it can be changed into a prime (11580971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8908 + ... + 10124.

It is an arithmetic number, because the mean of its divisors is an integer number (616714).

Almost surely, 211580972 is an apocalyptic number.

11580972 is a gapful number since it is divisible by the number (12) 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 11580972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14801136).

11580972 is an abundant number, since it is smaller than the sum of its proper divisors (18021300).

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

11580972 is a wasteful number, since it uses less digits than its factorization.

11580972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1298 (or 1296 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 33.

The square root of 11580972 is about 3403.0827201230. The cubic root of 11580972 is about 226.2463963692.

The spelling of 11580972 in words is "eleven million, five hundred eighty thousand, nine hundred seventy-two".

Divisors: 1 2 3 4 6 12 13 26 39 52 61 78 122 156 183 244 366 732 793 1217 1586 2379 2434 3172 3651 4758 4868 7302 9516 14604 15821 31642 47463 63284 74237 94926 148474 189852 222711 296948 445422 890844 965081 1930162 2895243 3860324 5790486 11580972