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BaseRepresentation
bin11010001110011…
…11001011101010
3120022222012122021
431013033023222
5422310013002
633455215054
75310656224
oct1507171352
9508865567
10220001002
11103204011
126181748a
133676b010
142130b414
15144aa737
hexd1cf2ea

220001002 has 8 divisors (see below), whose sum is σ = 355386276. Its totient is φ = 101538912.

The previous prime is 220000997. The next prime is 220001027. The reversal of 220001002 is 200100022.

Adding to 220001002 its reverse (200100022), we get a palindrome (420101024).

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 219899241 + 101761 = 14829^2 + 319^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4230763 + ... + 4230814.

Almost surely, 2220001002 is an apocalyptic number.

220001002 is a deficient number, since it is larger than the sum of its proper divisors (135385274).

220001002 is a wasteful number, since it uses less digits than its factorization.

220001002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8461592.

The product of its (nonzero) digits is 8, while the sum is 7.

The square root of 220001002 is about 14832.4307515660. The cubic root of 220001002 is about 603.6819901760.

The spelling of 220001002 in words is "two hundred twenty million, one thousand, two".