Search a number
-
+
2131400201 = 7304485743
BaseRepresentation
bin111111100001010…
…1001011000001001
312111112121100102012
41333002221120021
513331114301301
6551255145305
7103550413520
oct17702513011
95445540365
102131400201
119a4135577
124b5975235
1327c763268
141631014b7
15c71baebb
hex7f0a9609

2131400201 has 4 divisors (see below), whose sum is σ = 2435885952. Its totient is φ = 1826914452.

The previous prime is 2131400189. The next prime is 2131400203. The reversal of 2131400201 is 1020041312.

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 2131400201 - 222 = 2127205897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2131400203) 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, 152242865 + ... + 152242878.

It is an arithmetic number, because the mean of its divisors is an integer number (608971488).

Almost surely, 22131400201 is an apocalyptic number.

It is an amenable number.

2131400201 is a deficient number, since it is larger than the sum of its proper divisors (304485751).

2131400201 is an equidigital number, since it uses as much as digits as its factorization.

2131400201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304485750.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2131400201 is about 46167.0900209229. The cubic root of 2131400201 is about 1286.9302247270.

Adding to 2131400201 its reverse (1020041312), we get a palindrome (3151441513).

The spelling of 2131400201 in words is "two billion, one hundred thirty-one million, four hundred thousand, two hundred one".

Divisors: 1 7 304485743 2131400201