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312201011 = 2376117837
BaseRepresentation
bin10010100110111…
…100111100110011
3210202110110021102
4102212330330303
51114410413021
650551315015
710510444013
oct2246747463
9722413242
10312201011
11150258271
128867ba6b
134c8b0435
142d66bc43
151c61e00b
hex129bcf33

312201011 has 8 divisors (see below), whose sum is σ = 326221344. Its totient is φ = 298217920.

The previous prime is 312200983. The next prime is 312201013. The reversal of 312201011 is 110102213.

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 312201011 - 26 = 312200947 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312200983 and 312201001.

It is not an unprimeable number, because it can be changed into a prime (312201013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8585 + ... + 26421.

It is an arithmetic number, because the mean of its divisors is an integer number (40777668).

Almost surely, 2312201011 is an apocalyptic number.

312201011 is a deficient number, since it is larger than the sum of its proper divisors (14020333).

312201011 is a wasteful number, since it uses less digits than its factorization.

312201011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18621.

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

The square root of 312201011 is about 17669.2108199546. The cubic root of 312201011 is about 678.3879134882.

Adding to 312201011 its reverse (110102213), we get a palindrome (422303224).

The spelling of 312201011 in words is "three hundred twelve million, two hundred one thousand, eleven".

Divisors: 1 23 761 17503 17837 410251 13573957 312201011