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3120211001 = 109178916001
BaseRepresentation
bin1011100111111010…
…1010010000111001
322001110020010211102
42321332222100321
522342233223001
61233340541145
7140215233035
oct27176522071
98043203742
103120211001
111361306786
12730b517b5
133a95834cb
142185791c5
15133ddbe6b
hexb9faa439

3120211001 has 8 divisors (see below), whose sum is σ = 3150793800. Its totient is φ = 3089664000.

The previous prime is 3120210997. The next prime is 3120211013. The reversal of 3120211001 is 1001120213.

It can be written as a sum of positive squares in 4 ways, for example, as 2099472400 + 1020738601 = 45820^2 + 31949^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 3120211001 - 22 = 3120210997 is a prime.

It is a super-2 number, since 2×31202110012 = 19471433381522844002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3120211051) 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, 187001 + ... + 203001.

It is an arithmetic number, because the mean of its divisors is an integer number (393849225).

Almost surely, 23120211001 is an apocalyptic number.

It is an amenable number.

3120211001 is a deficient number, since it is larger than the sum of its proper divisors (30582799).

3120211001 is a wasteful number, since it uses less digits than its factorization.

3120211001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17899.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 3120211001 is about 55858.8489050750. The cubic root of 3120211001 is about 1461.2616543179.

Adding to 3120211001 its reverse (1001120213), we get a palindrome (4121331214).

The spelling of 3120211001 in words is "three billion, one hundred twenty million, two hundred eleven thousand, one".

Divisors: 1 109 1789 16001 195001 1744109 28625789 3120211001