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11380408 = 2313731499
BaseRepresentation
bin101011011010…
…011010111000
3210102011222121
4223122122320
510403133113
61043531024
7165506014
oct53323270
923364877
1011380408
1164732a6
123989a74
132485c90
141723544
15eebe8d
hexada6b8

11380408 has 32 divisors (see below), whose sum is σ = 23310000. Its totient is φ = 5177088.

The previous prime is 11380403. The next prime is 11380409. The reversal of 11380408 is 80408311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11380403) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 6843 + ... + 8341.

Almost surely, 211380408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11380408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11655000).

11380408 is an abundant number, since it is smaller than the sum of its proper divisors (11929592).

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

11380408 is a wasteful number, since it uses less digits than its factorization.

11380408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1591 (or 1587 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 11380408 is about 3373.4860307996. The cubic root of 11380408 is about 224.9327074483.

Adding to 11380408 its reverse (80408311), we get a palindrome (91788719).

The spelling of 11380408 in words is "eleven million, three hundred eighty thousand, four hundred eight".

Divisors: 1 2 4 8 13 26 52 73 104 146 292 584 949 1499 1898 2998 3796 5996 7592 11992 19487 38974 77948 109427 155896 218854 437708 875416 1422551 2845102 5690204 11380408