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11287315 = 513173651
BaseRepresentation
bin101011000011…
…101100010011
3210020110021201
4223003230103
510342143230
61041532031
7164640424
oct53035423
923213251
1011287315
11640a366
123944017
1324527b0
1416db64b
15ece5ca
hexac3b13

11287315 has 8 divisors (see below), whose sum is σ = 14586768. Its totient is φ = 8335200.

The previous prime is 11287313. The next prime is 11287321. The reversal of 11287315 is 51378211.

11287315 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11287315 - 21 = 11287313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11287313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86761 + ... + 86890.

It is an arithmetic number, because the mean of its divisors is an integer number (1823346).

Almost surely, 211287315 is an apocalyptic number.

11287315 is a deficient number, since it is larger than the sum of its proper divisors (3299453).

11287315 is a wasteful number, since it uses less digits than its factorization.

11287315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173669.

The product of its digits is 1680, while the sum is 28.

The square root of 11287315 is about 3359.6599530310. The cubic root of 11287315 is about 224.3177026177.

The spelling of 11287315 in words is "eleven million, two hundred eighty-seven thousand, three hundred fifteen".

Divisors: 1 5 13 65 173651 868255 2257463 11287315