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220330220401 = 392159561839
BaseRepresentation
bin1100110100110010110…
…1000101101101110001
3210001201012011212222101
43031030231011231301
512102214014023101
6245115053140401
721626662654414
oct3151455055561
9701635155871
10220330220401
1185494735745
123685018a701
1317a14245ca5
14a9421a5b7b
155ae81bd401
hex334cb45b71

220330220401 has 4 divisors (see below), whose sum is σ = 220331174400. Its totient is φ = 220329266404.

The previous prime is 220330220371. The next prime is 220330220419. The reversal of 220330220401 is 104022033022.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 104022033022 = 252011016511.

It is a cyclic number.

It is not a de Polignac number, because 220330220401 - 225 = 220296665969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220330220471) 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, 111240 + ... + 673078.

It is an arithmetic number, because the mean of its divisors is an integer number (55082793600).

Almost surely, 2220330220401 is an apocalyptic number.

It is an amenable number.

220330220401 is a deficient number, since it is larger than the sum of its proper divisors (953999).

220330220401 is an equidigital number, since it uses as much as digits as its factorization.

220330220401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 953998.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 220330220401 its reverse (104022033022), we get a palindrome (324352253423).

The spelling of 220330220401 in words is "two hundred twenty billion, three hundred thirty million, two hundred twenty thousand, four hundred one".

Divisors: 1 392159 561839 220330220401