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10800001 = 78713723
BaseRepresentation
bin101001001100…
…101110000001
3202022200211001
4221030232001
510231100001
61023252001
7160540612
oct51145601
922280731
1010800001
116107223
12374a001
132311a44
141611c09
15e35001
hexa4cb81

10800001 has 4 divisors (see below), whose sum is σ = 10814512. Its totient is φ = 10785492.

The previous prime is 10799993. The next prime is 10800007. The reversal of 10800001 is 10000801.

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.

It is a cyclic number.

It is not a de Polignac number, because 10800001 - 23 = 10799993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10800007) 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, 6075 + ... + 7648.

It is an arithmetic number, because the mean of its divisors is an integer number (2703628).

Almost surely, 210800001 is an apocalyptic number.

It is an amenable number.

10800001 is a deficient number, since it is larger than the sum of its proper divisors (14511).

10800001 is an equidigital number, since it uses as much as digits as its factorization.

10800001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14510.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 10800001 is about 3286.3354971761. The cubic root of 10800001 is about 221.0418967407.

Adding to 10800001 its reverse (10000801), we get a palindrome (20800802).

The spelling of 10800001 in words is "ten million, eight hundred thousand, one".

Divisors: 1 787 13723 10800001