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11205401 = 22749363
BaseRepresentation
bin101010101111…
…101100011001
3210002021220212
4222233230121
510332033101
61040100505
7164146544
oct52575431
923067825
1011205401
116363869
123904735
13242441c
1416b985b
15eb51bb
hexaafb19

11205401 has 4 divisors (see below), whose sum is σ = 11254992. Its totient is φ = 11155812.

The previous prime is 11205391. The next prime is 11205407. The reversal of 11205401 is 10450211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10450211 = 23454357.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-11205401 is a prime.

It is a super-2 number, since 2×112054012 = 251122023141602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11205407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24455 + ... + 24908.

It is an arithmetic number, because the mean of its divisors is an integer number (2813748).

Almost surely, 211205401 is an apocalyptic number.

It is an amenable number.

11205401 is a deficient number, since it is larger than the sum of its proper divisors (49591).

11205401 is an equidigital number, since it uses as much as digits as its factorization.

11205401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49590.

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 11205401 is about 3347.4469375929. The cubic root of 11205401 is about 223.7737471545.

Adding to 11205401 its reverse (10450211), we get a palindrome (21655612).

The spelling of 11205401 in words is "eleven million, two hundred five thousand, four hundred one".

Divisors: 1 227 49363 11205401