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2040555223 = 7291507889
BaseRepresentation
bin111100110100000…
…0110011011010111
312021012122221112101
41321220012123113
513134340231343
6534252102531
7101365301410
oct17150063327
95235587471
102040555223
11957927383
1248b464a47
132669a6835
14155014807
15be223e4d
hex79a066d7

2040555223 has 4 divisors (see below), whose sum is σ = 2332063120. Its totient is φ = 1749047328.

The previous prime is 2040555221. The next prime is 2040555233. The reversal of 2040555223 is 3225550402.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3225550402 = 21612775201.

It is not a de Polignac number, because 2040555223 - 21 = 2040555221 is a prime.

It is a super-2 number, since 2×20405552232 = 8327731236225159458, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2040555191 and 2040555200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2040555221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145753938 + ... + 145753951.

It is an arithmetic number, because the mean of its divisors is an integer number (583015780).

Almost surely, 22040555223 is an apocalyptic number.

2040555223 is a deficient number, since it is larger than the sum of its proper divisors (291507897).

2040555223 is an equidigital number, since it uses as much as digits as its factorization.

2040555223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291507896.

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 2040555223 is about 45172.5051663066. The cubic root of 2040555223 is about 1268.3801910936.

The spelling of 2040555223 in words is "two billion, forty million, five hundred fifty-five thousand, two hundred twenty-three".

Divisors: 1 7 291507889 2040555223