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7411220021 = 16744378563
BaseRepresentation
bin1101110011011111…
…00011111000110101
3201010111111222121102
412321233203320311
5110134233020041
63223224055445
7351441221312
oct67157437065
921114458542
107411220021
113163493327
12152a004585
139115754ba
14504401d09
152d599709b
hex1b9be3e35

7411220021 has 4 divisors (see below), whose sum is σ = 7455598752. Its totient is φ = 7366841292.

The previous prime is 7411220017. The next prime is 7411220093. The reversal of 7411220021 is 1200221147.

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 7411220021 - 22 = 7411220017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7411219975 and 7411220002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7411220821) 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, 22189115 + ... + 22189448.

It is an arithmetic number, because the mean of its divisors is an integer number (1863899688).

Almost surely, 27411220021 is an apocalyptic number.

It is an amenable number.

7411220021 is a deficient number, since it is larger than the sum of its proper divisors (44378731).

7411220021 is a wasteful number, since it uses less digits than its factorization.

7411220021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44378730.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 7411220021 is about 86088.4430164700. The cubic root of 7411220021 is about 1949.6795459383.

Adding to 7411220021 its reverse (1200221147), we get a palindrome (8611441168).

The spelling of 7411220021 in words is "seven billion, four hundred eleven million, two hundred twenty thousand, twenty-one".

Divisors: 1 167 44378563 7411220021