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11215061 = 111378427
BaseRepresentation
bin101010110010…
…000011010101
3210002210011122
4222302003111
510332340221
61040213325
7164216654
oct52620325
923083148
1011215061
116370050
12390a245
132428940
1416bd19b
15eb7eab
hexab20d5

11215061 has 8 divisors (see below), whose sum is σ = 13175904. Its totient is φ = 9411120.

The previous prime is 11215049. The next prime is 11215079. The reversal of 11215061 is 16051211.

11215061 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11215061 - 222 = 7020757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11215031) 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 7 ways as a sum of consecutive naturals, for example, 39071 + ... + 39356.

It is an arithmetic number, because the mean of its divisors is an integer number (1646988).

Almost surely, 211215061 is an apocalyptic number.

11215061 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11215061 is a deficient number, since it is larger than the sum of its proper divisors (1960843).

11215061 is a wasteful number, since it uses less digits than its factorization.

11215061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78451.

The product of its (nonzero) digits is 60, while the sum is 17.

The square root of 11215061 is about 3348.8895174371. The cubic root of 11215061 is about 223.8380326277.

Adding to 11215061 its reverse (16051211), we get a palindrome (27266272).

It can be divided in two parts, 112150 and 61, that added together give a palindrome (112211).

The spelling of 11215061 in words is "eleven million, two hundred fifteen thousand, sixty-one".

Divisors: 1 11 13 143 78427 862697 1019551 11215061