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101216260 = 2255060813
BaseRepresentation
bin1100000100001…
…11000000000100
321001110022121101
412002013000010
5201402410020
614013225444
72336216065
oct602070004
9231408541
10101216260
1152152302
1229a92284
1317c7b2a2
14d62a56c
158d4500a
hex6087004

101216260 has 12 divisors (see below), whose sum is σ = 212554188. Its totient is φ = 40486496.

The previous prime is 101216243. The next prime is 101216267. The reversal of 101216260 is 62612101.

It can be written as a sum of positive squares in 2 ways, for example, as 71774784 + 29441476 = 8472^2 + 5426^2 .

It is not an unprimeable number, because it can be changed into a prime (101216267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2530387 + ... + 2530426.

It is an arithmetic number, because the mean of its divisors is an integer number (17712849).

Almost surely, 2101216260 is an apocalyptic number.

101216260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101216260 is an abundant number, since it is smaller than the sum of its proper divisors (111337928).

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

101216260 is a wasteful number, since it uses less digits than its factorization.

101216260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5060822 (or 5060820 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 101216260 is about 10060.6292049752. The cubic root of 101216260 is about 466.0330982772.

Adding to 101216260 its reverse (62612101), we get a palindrome (163828361).

The spelling of 101216260 in words is "one hundred one million, two hundred sixteen thousand, two hundred sixty".

Divisors: 1 2 4 5 10 20 5060813 10121626 20243252 25304065 50608130 101216260