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312112230201 = 321710175726681
BaseRepresentation
bin1001000101010110101…
…01101010111100111001
31002211121122020001222200
410202223111222330321
520103201212331301
6355214332140413
731356301120002
oct4425325527471
91084548201880
10312112230201
11110403243102
12505a5907709
13235802c9925
141116ba161a9
1581babecc86
hex48ab56af39

312112230201 has 48 divisors (see below), whose sum is σ = 482729249808. Its totient is φ = 193632768000.

The previous prime is 312112230173. The next prime is 312112230247. The reversal of 312112230201 is 102032211213.

312112230201 is a `hidden beast` number, since 31 + 211 + 223 + 0 + 201 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 3887397801 + 308224832400 = 62349^2 + 555180^2 .

It is not a de Polignac number, because 312112230201 - 218 = 312111968057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (312112230251) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11684581 + ... + 11711261.

It is an arithmetic number, because the mean of its divisors is an integer number (10056859371).

Almost surely, 2312112230201 is an apocalyptic number.

It is an amenable number.

312112230201 is a deficient number, since it is larger than the sum of its proper divisors (170617019607).

312112230201 is a wasteful number, since it uses less digits than its factorization.

312112230201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27562 (or 27559 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 312112230201 its reverse (102032211213), we get a palindrome (414144441414).

The spelling of 312112230201 in words is "three hundred twelve billion, one hundred twelve million, two hundred thirty thousand, two hundred one".

Divisors: 1 3 9 17 51 101 153 303 757 909 1717 2271 5151 6813 12869 15453 26681 38607 76457 80043 115821 229371 240129 453577 688113 1299769 1360731 2694781 3899307 4082193 8084343 11697921 20197517 24253029 45811277 60592551 137433831 181777653 343357789 412301493 1030073367 2039949217 3090220101 6119847651 18359542953 34679136689 104037410067 312112230201