Search a number
BaseRepresentation
bin111111100001000…
…0011110000010101
312111112022112000210
41333002003300111
513331044333401
6551252000033
7103546202325
oct17702036025
95445275023
102131246101
119a403a816
124b5900019
1327c70b08a
141630a1285
15c718a4d6
hex7f083c15

2131246101 has 4 divisors (see below), whose sum is σ = 2841661472. Its totient is φ = 1420830732.

The previous prime is 2131246099. The next prime is 2131246111. The reversal of 2131246101 is 1016421312.

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 not a de Polignac number, because 2131246101 - 21 = 2131246099 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131246111) 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, 355207681 + ... + 355207686.

It is an arithmetic number, because the mean of its divisors is an integer number (710415368).

Almost surely, 22131246101 is an apocalyptic number.

It is an amenable number.

2131246101 is a deficient number, since it is larger than the sum of its proper divisors (710415371).

2131246101 is an equidigital number, since it uses as much as digits as its factorization.

2131246101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710415370.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 2131246101 is about 46165.4210529916. The cubic root of 2131246101 is about 1286.8992090083.

Adding to 2131246101 its reverse (1016421312), we get a palindrome (3147667413).

The spelling of 2131246101 in words is "two billion, one hundred thirty-one million, two hundred forty-six thousand, one hundred one".

Divisors: 1 3 710415367 2131246101