Search a number
-
+
2555231401 = 2725993739
BaseRepresentation
bin1001100001001101…
…1011110010101001
320121002010012112001
42120103123302221
520213114401101
61101315251001
7120215052142
oct23023336251
96532105461
102555231401
1110a13a8198
125b38a9a61
133194c9a58
141a350aac9
15ee4da901
hex984dbca9

2555231401 has 4 divisors (see below), whose sum is σ = 2555352400. Its totient is φ = 2555110404.

The previous prime is 2555231387. The next prime is 2555231411. The reversal of 2555231401 is 1041325552.

2555231401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2555231401 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2555231401.

It is not an unprimeable number, because it can be changed into a prime (2555231411) 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, 19611 + ... + 74128.

It is an arithmetic number, because the mean of its divisors is an integer number (638838100).

Almost surely, 22555231401 is an apocalyptic number.

It is an amenable number.

2555231401 is a deficient number, since it is larger than the sum of its proper divisors (120999).

2555231401 is an equidigital number, since it uses as much as digits as its factorization.

2555231401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120998.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 2555231401 is about 50549.2967409043. The cubic root of 2555231401 is about 1367.1308346472.

Adding to 2555231401 its reverse (1041325552), we get a palindrome (3596556953).

It can be divided in two parts, 25552 and 31401, that added together give a triangular number (56953 = T337).

The spelling of 2555231401 in words is "two billion, five hundred fifty-five million, two hundred thirty-one thousand, four hundred one".

Divisors: 1 27259 93739 2555231401