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220202012 = 22173318211
BaseRepresentation
bin11010010000000…
…00010000011100
3120100100102101002
431020000100130
5422332431022
633503405432
75312454242
oct1510002034
9510312332
10220202012
11103331038
12618b3878
133680b664
1421360792
15144ea092
hexd20041c

220202012 has 12 divisors (see below), whose sum is σ = 387582216. Its totient is φ = 109464240.

The previous prime is 220201991. The next prime is 220202051. The reversal of 220202012 is 210202022.

Adding to 220202012 its reverse (210202022), we get a palindrome (430404034).

It is a junction number, because it is equal to n+sod(n) for n = 220201984 and 220202002.

It is a congruent number.

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, 158414 + ... + 159797.

It is an arithmetic number, because the mean of its divisors is an integer number (32298518).

Almost surely, 2220202012 is an apocalyptic number.

It is an amenable number.

220202012 is a deficient number, since it is larger than the sum of its proper divisors (167380204).

220202012 is a wasteful number, since it uses less digits than its factorization.

220202012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318388 (or 318386 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 220202012 is about 14839.2052347826. The cubic root of 220202012 is about 603.8657911245.

The spelling of 220202012 in words is "two hundred twenty million, two hundred two thousand, twelve".

Divisors: 1 2 4 173 346 692 318211 636422 1272844 55050503 110101006 220202012