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212002212210 = 23526993261799
BaseRepresentation
bin1100010101110001010…
…0010000100101110010
3202021012210120020102120
43011130110100211302
511433140031242320
6241220435055110
721213420033225
oct3053424204562
9667183506376
10212002212210
1181a007a3948
1235107141496
1316cb7a798a9
14a3921175bc
1557abed0440
hex315c510972

212002212210 has 32 divisors (see below), whose sum is σ = 508826102400. Its totient is φ = 56531612928.

The previous prime is 212002212193. The next prime is 212002212223. The reversal of 212002212210 is 12212200212.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 212002212210.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 678891 + ... + 940689.

It is an arithmetic number, because the mean of its divisors is an integer number (15900815700).

Almost surely, 2212002212210 is an apocalyptic number.

212002212210 is an abundant number, since it is smaller than the sum of its proper divisors (296823890190).

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

212002212210 is a wasteful number, since it uses less digits than its factorization.

212002212210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288802.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 212002212210 its reverse (12212200212), we get a palindrome (224214412422).

The spelling of 212002212210 in words is "two hundred twelve billion, two million, two hundred twelve thousand, two hundred ten".

Divisors: 1 2 3 5 6 10 15 30 26993 53986 80979 134965 161958 261799 269930 404895 523598 785397 809790 1308995 1570794 2617990 3926985 7853970 7066740407 14133480814 21200221221 35333702035 42400442442 70667404070 106001106105 212002212210