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222120002 = 2138543077
BaseRepresentation
bin11010011110101…
…00100001000010
3120110221212100202
431033110201002
5423330320002
634012445202
75334663116
oct1517244102
9513855322
10222120002
11104421055
1262479802
1337030670
14216dd746
1514778502
hexd3d4842

222120002 has 8 divisors (see below), whose sum is σ = 358809276. Its totient is φ = 102516912.

The previous prime is 222119987. The next prime is 222120023. The reversal of 222120002 is 200021222.

It can be written as a sum of positive squares in 2 ways, for example, as 167935681 + 54184321 = 12959^2 + 7361^2 .

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, 4271513 + ... + 4271564.

Almost surely, 2222120002 is an apocalyptic number.

222120002 is a deficient number, since it is larger than the sum of its proper divisors (136689274).

222120002 is a wasteful number, since it uses less digits than its factorization.

222120002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8543092.

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

The square root of 222120002 is about 14903.6908851465. The cubic root of 222120002 is about 605.6139767981.

Adding to 222120002 its reverse (200021222), we get a palindrome (422141224).

The spelling of 222120002 in words is "two hundred twenty-two million, one hundred twenty thousand, two".

Divisors: 1 2 13 26 8543077 17086154 111060001 222120002