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11315457 = 34139697
BaseRepresentation
bin101011001010…
…100100000001
3210021212220000
4223022210001
510344043312
61042310213
7165115446
oct53124401
923255800
1011315457
11642951a
123958369
13246254a
1417079cd
15ed7adc
hexaca901

11315457 has 10 divisors (see below), whose sum is σ = 16903458. Its totient is φ = 7543584.

The previous prime is 11315443. The next prime is 11315501. The reversal of 11315457 is 75451311.

11315457 is a `hidden beast` number, since 113 + 1 + 545 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 10439361 + 876096 = 3231^2 + 936^2 .

It is not a de Polignac number, because 11315457 - 24 = 11315441 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 11315457.

It is not an unprimeable number, because it can be changed into a prime (11313457) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 69768 + ... + 69929.

Almost surely, 211315457 is an apocalyptic number.

It is an amenable number.

11315457 is a deficient number, since it is larger than the sum of its proper divisors (5588001).

11315457 is an equidigital number, since it uses as much as digits as its factorization.

11315457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139709 (or 139700 counting only the distinct ones).

The product of its digits is 2100, while the sum is 27.

The square root of 11315457 is about 3363.8455672043. The cubic root of 11315457 is about 224.5039739509.

Adding to 11315457 its reverse (75451311), we get a palindrome (86766768).

The spelling of 11315457 in words is "eleven million, three hundred fifteen thousand, four hundred fifty-seven".

Divisors: 1 3 9 27 81 139697 419091 1257273 3771819 11315457