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11370381 = 311477331
BaseRepresentation
bin101011010111…
…111110001101
3210101200020020
4223113332031
510402323011
61043412353
7165434541
oct53277615
923350206
1011370381
116466810
1239840b9
132481549
14171da21
15ee9006
hexad7f8d

11370381 has 16 divisors (see below), whose sum is σ = 16892928. Its totient is φ = 6743600.

The previous prime is 11370377. The next prime is 11370389. The reversal of 11370381 is 18307311.

It is a cyclic number.

It is not a de Polignac number, because 11370381 - 22 = 11370377 is a prime.

It is a super-2 number, since 2×113703812 = 258571128170322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11370389) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2115 + ... + 5216.

It is an arithmetic number, because the mean of its divisors is an integer number (1055808).

Almost surely, 211370381 is an apocalyptic number.

11370381 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11370381 is a deficient number, since it is larger than the sum of its proper divisors (5522547).

11370381 is a wasteful number, since it uses less digits than its factorization.

11370381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7392.

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 11370381 is about 3371.9995551601. Note that the first 3 decimals coincide. The cubic root of 11370381 is about 224.8666271292.

Adding to 11370381 its reverse (18307311), we get a palindrome (29677692).

The spelling of 11370381 in words is "eleven million, three hundred seventy thousand, three hundred eighty-one".

Divisors: 1 3 11 33 47 141 517 1551 7331 21993 80641 241923 344557 1033671 3790127 11370381