Search a number
-
+
11071613 = 77920021
BaseRepresentation
bin101010001111…
…000001111101
3202211111101202
4222033001331
510313242423
61033145245
7163051520
oct52170175
922744352
1011071613
1162822a3
12385b225
1323a8567
141682bb7
15e8a728
hexa8f07d

11071613 has 8 divisors (see below), whose sum is σ = 12814080. Its totient is φ = 9369360.

The previous prime is 11071609. The next prime is 11071631. The reversal of 11071613 is 31617011.

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

It is not a de Polignac number, because 11071613 - 22 = 11071609 is a prime.

It is a super-2 number, since 2×110716132 = 245161228843538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11071603) 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, 9458 + ... + 10563.

It is an arithmetic number, because the mean of its divisors is an integer number (1601760).

Almost surely, 211071613 is an apocalyptic number.

It is an amenable number.

11071613 is a deficient number, since it is larger than the sum of its proper divisors (1742467).

11071613 is an equidigital number, since it uses as much as digits as its factorization.

11071613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20107.

The product of its (nonzero) digits is 126, while the sum is 20.

The square root of 11071613 is about 3327.4033419470. The cubic root of 11071613 is about 222.8795893885.

Adding to 11071613 its reverse (31617011), we get a palindrome (42688624).

The spelling of 11071613 in words is "eleven million, seventy-one thousand, six hundred thirteen".

Divisors: 1 7 79 553 20021 140147 1581659 11071613