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213220002 = 2354165687
BaseRepresentation
bin11001011010101…
…11101010100010
3112212012200212010
430231113222202
5414041020002
633054013350
75166224442
oct1455275242
9485180763
10213220002
11aa3a2386
125b4a7256
13352356a8
1420464122
1513abb46c
hexcb57aa2

213220002 has 16 divisors (see below), whose sum is σ = 427234752. Its totient is φ = 70940880.

The previous prime is 213219983. The next prime is 213220009. The reversal of 213220002 is 200022312.

It is a self number, because there is not a number n which added to its sum of digits gives 213220002.

It is not an unprimeable number, because it can be changed into a prime (213220009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29598 + ... + 36089.

It is an arithmetic number, because the mean of its divisors is an integer number (26702172).

Almost surely, 2213220002 is an apocalyptic number.

213220002 is an abundant number, since it is smaller than the sum of its proper divisors (214014750).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213220002 is a wasteful number, since it uses less digits than its factorization.

213220002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66233.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 213220002 is about 14602.0547184292. The cubic root of 213220002 is about 597.4148050539.

Adding to 213220002 its reverse (200022312), we get a palindrome (413242314).

The spelling of 213220002 in words is "two hundred thirteen million, two hundred twenty thousand, two".

Divisors: 1 2 3 6 541 1082 1623 3246 65687 131374 197061 394122 35536667 71073334 106610001 213220002