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11361388 = 222997943
BaseRepresentation
bin101011010101…
…110001101100
3210101012220011
4223111301230
510402031023
61043303004
7165366403
oct53256154
923335804
1011361388
11645aa85
12397aa64
13247a41c
14171a63a
15ee650d
hexad5c6c

11361388 has 12 divisors (see below), whose sum is σ = 20568240. Its totient is φ = 5484752.

The previous prime is 11361353. The next prime is 11361403. The reversal of 11361388 is 88316311.

It is a super-2 number, since 2×113613882 = 258162274573088, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48856 + ... + 49087.

It is an arithmetic number, because the mean of its divisors is an integer number (1714020).

Almost surely, 211361388 is an apocalyptic number.

It is an amenable number.

11361388 is a deficient number, since it is larger than the sum of its proper divisors (9206852).

11361388 is a wasteful number, since it uses less digits than its factorization.

11361388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97976 (or 97974 counting only the distinct ones).

The product of its digits is 3456, while the sum is 31.

The square root of 11361388 is about 3370.6658095990. The cubic root of 11361388 is about 224.8073280624.

Adding to 11361388 its reverse (88316311), we get a palindrome (99677699).

The spelling of 11361388 in words is "eleven million, three hundred sixty-one thousand, three hundred eighty-eight".

Divisors: 1 2 4 29 58 116 97943 195886 391772 2840347 5680694 11361388