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11390457 = 313793697
BaseRepresentation
bin101011011100…
…110111111001
3210102200202210
4223130313321
510403443312
61044045333
7165550221
oct53346771
923380683
1011390457
11647a901
123993849
13248a720
141727081
15eeee3c
hexadcdf9

11390457 has 16 divisors (see below), whose sum is σ = 16567040. Its totient is φ = 6918912.

The previous prime is 11390453. The next prime is 11390473. The reversal of 11390457 is 75409311.

It is not a de Polignac number, because 11390457 - 22 = 11390453 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11390453) 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, 1233 + ... + 4929.

It is an arithmetic number, because the mean of its divisors is an integer number (1035440).

Almost surely, 211390457 is an apocalyptic number.

It is an amenable number.

11390457 is a deficient number, since it is larger than the sum of its proper divisors (5176583).

11390457 is a wasteful number, since it uses less digits than its factorization.

11390457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3792.

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 11390457 is about 3374.9751110193. The cubic root of 11390457 is about 224.9988938217.

Adding to 11390457 its reverse (75409311), we get a palindrome (86799768).

The spelling of 11390457 in words is "eleven million, three hundred ninety thousand, four hundred fifty-seven".

Divisors: 1 3 13 39 79 237 1027 3081 3697 11091 48061 144183 292063 876189 3796819 11390457