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220775541 = 3710513121
BaseRepresentation
bin11010010100011…
…00010001110101
3120101102120002220
431022030101311
5423004304131
633523552553
75320363320
oct1512142165
9511376086
10220775541
11103692a28
1261b2b759
133697c71c
142146d7b7
15145aee96
hexd28c475

220775541 has 8 divisors (see below), whose sum is σ = 336419904. Its totient is φ = 126157440.

The previous prime is 220775509. The next prime is 220775543. The reversal of 220775541 is 145577022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 220775541 - 25 = 220775509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220775543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5256540 + ... + 5256581.

It is an arithmetic number, because the mean of its divisors is an integer number (42052488).

Almost surely, 2220775541 is an apocalyptic number.

220775541 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

220775541 is a deficient number, since it is larger than the sum of its proper divisors (115644363).

220775541 is a wasteful number, since it uses less digits than its factorization.

220775541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10513131.

The product of its (nonzero) digits is 19600, while the sum is 33.

The square root of 220775541 is about 14858.5174563279. The cubic root of 220775541 is about 604.3896045260.

The spelling of 220775541 in words is "two hundred twenty million, seven hundred seventy-five thousand, five hundred forty-one".

Divisors: 1 3 7 21 10513121 31539363 73591847 220775541