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10220480449 = 55718349157
BaseRepresentation
bin10011000010011000…
…00010011111000001
3222101021122012102221
421201030002133001
5131412420333244
64410100211041
7511162436044
oct114114023701
928337565387
1010220480449
114375216263
121b92999a81
13c6b59578a
146cd556c5b
153ec410784
hex2613027c1

10220480449 has 4 divisors (see below), whose sum is σ = 10238830164. Its totient is φ = 10202130736.

The previous prime is 10220480443. The next prime is 10220480471. The reversal of 10220480449 is 94408402201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94408402201 = 285733044593.

It can be written as a sum of positive squares in 2 ways, for example, as 4802490000 + 5417990449 = 69300^2 + 73607^2 .

It is a cyclic number.

It is not a de Polignac number, because 10220480449 - 23 = 10220480441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10220480441) 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 3 ways as a sum of consecutive naturals, for example, 9174022 + ... + 9175135.

It is an arithmetic number, because the mean of its divisors is an integer number (2559707541).

Almost surely, 210220480449 is an apocalyptic number.

It is an amenable number.

10220480449 is a deficient number, since it is larger than the sum of its proper divisors (18349715).

10220480449 is an equidigital number, since it uses as much as digits as its factorization.

10220480449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18349714.

The product of its (nonzero) digits is 18432, while the sum is 34.

The spelling of 10220480449 in words is "ten billion, two hundred twenty million, four hundred eighty thousand, four hundred forty-nine".

Divisors: 1 557 18349157 10220480449