Search a number
-
+
2801426137 = 14531928029
BaseRepresentation
bin1010011011111010…
…0101111011011001
321020020101012012121
42212332211323121
521214131114022
61141552141241
7126264505066
oct24676457331
97206335177
102801426137
111208371a14
12662237821
13358509403
141c80b5c6d
15115e1c2c7
hexa6fa5ed9

2801426137 has 4 divisors (see below), whose sum is σ = 2803355620. Its totient is φ = 2799496656.

The previous prime is 2801426099. The next prime is 2801426143. The reversal of 2801426137 is 7316241082.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7316241082 = 23658120541.

It can be written as a sum of positive squares in 2 ways, for example, as 1995944976 + 805481161 = 44676^2 + 28381^2 .

It is a cyclic number.

It is not a de Polignac number, because 2801426137 - 223 = 2793037529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2801426167) 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, 962562 + ... + 965467.

It is an arithmetic number, because the mean of its divisors is an integer number (700838905).

Almost surely, 22801426137 is an apocalyptic number.

It is an amenable number.

2801426137 is a deficient number, since it is larger than the sum of its proper divisors (1929483).

2801426137 is a wasteful number, since it uses less digits than its factorization.

2801426137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1929482.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 2801426137 is about 52928.5002338060. The cubic root of 2801426137 is about 1409.6990013562.

The spelling of 2801426137 in words is "two billion, eight hundred one million, four hundred twenty-six thousand, one hundred thirty-seven".

Divisors: 1 1453 1928029 2801426137