Search a number
-
+
12310001 = 111119091
BaseRepresentation
bin101110111101…
…010111110001
3212011102010222
4232331113301
511122410001
61115502425
7206430134
oct56752761
925142128
1012310001
116a48760
124157a15
132720132
1418c621b
15113261b
hexbbd5f1

12310001 has 4 divisors (see below), whose sum is σ = 13429104. Its totient is φ = 11190900.

The previous prime is 12309961. The next prime is 12310013. The reversal of 12310001 is 10001321.

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 a de Polignac number, because none of the positive numbers 2k-12310001 is a prime.

It is a super-2 number, since 2×123100012 = 303072249240002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12310021) 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, 559535 + ... + 559556.

It is an arithmetic number, because the mean of its divisors is an integer number (3357276).

Almost surely, 212310001 is an apocalyptic number.

12310001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12310001 is a deficient number, since it is larger than the sum of its proper divisors (1119103).

12310001 is a wasteful number, since it uses less digits than its factorization.

12310001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1119102.

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 12310001 is about 3508.5611010783. The cubic root of 12310001 is about 230.8975701993.

Adding to 12310001 its reverse (10001321), we get a palindrome (22311322).

It can be divided in two parts, 12 and 310001, that added together give a palindrome (310013).

The spelling of 12310001 in words is "twelve million, three hundred ten thousand, one".

Divisors: 1 11 1119091 12310001