Search a number
-
+
2270404081 = 11206400371
BaseRepresentation
bin1000011101010011…
…1001110111110001
312212020011110220001
42013110321313301
514122210412311
61013142350001
7110156054611
oct20724716761
95766143801
102270404081
11a65647210
1253442b301
132a24b208a
14177766a41
15d44c74c1
hex87539df1

2270404081 has 4 divisors (see below), whose sum is σ = 2476804464. Its totient is φ = 2064003700.

The previous prime is 2270404067. The next prime is 2270404109. The reversal of 2270404081 is 1804040722.

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 2270404081 - 211 = 2270402033 is a prime.

It is a super-2 number, since 2×22704040812 = 10309469382042909122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2270404051) 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, 103200175 + ... + 103200196.

It is an arithmetic number, because the mean of its divisors is an integer number (619201116).

Almost surely, 22270404081 is an apocalyptic number.

It is an amenable number.

2270404081 is a deficient number, since it is larger than the sum of its proper divisors (206400383).

2270404081 is a wasteful number, since it uses less digits than its factorization.

2270404081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206400382.

The product of its (nonzero) digits is 3584, while the sum is 28.

The square root of 2270404081 is about 47648.7573919824. The cubic root of 2270404081 is about 1314.3198072571.

It can be divided in two parts, 2270 and 404081, that added together give a triangular number (406351 = T901).

The spelling of 2270404081 in words is "two billion, two hundred seventy million, four hundred four thousand, eighty-one".

Divisors: 1 11 206400371 2270404081