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312310423345 = 5259324088733
BaseRepresentation
bin1001000101101110010…
…01101101111100110001
31002212010110011022212111
410202313021231330301
520104102432021340
6355250132125321
731364225540404
oct4426711557461
91085113138774
10312310423345
111104a5101598
1250640166841
13235b23a068b
141118a087d3b
1581cd2ebaea
hex48b726df31

312310423345 has 8 divisors (see below), whose sum is σ = 374917055976. Its totient is φ = 249751973376.

The previous prime is 312310423301. The next prime is 312310423349. The reversal of 312310423345 is 543324013213.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 757790784 + 311552632561 = 27528^2 + 558169^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-312310423345 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312310423349) 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, 12031402 + ... + 12057331.

It is an arithmetic number, because the mean of its divisors is an integer number (46864631997).

Almost surely, 2312310423345 is an apocalyptic number.

It is an amenable number.

312310423345 is a deficient number, since it is larger than the sum of its proper divisors (62606632631).

312310423345 is a wasteful number, since it uses less digits than its factorization.

312310423345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24091331.

The product of its (nonzero) digits is 25920, while the sum is 31.

Adding to 312310423345 its reverse (543324013213), we get a palindrome (855634436558).

The spelling of 312310423345 in words is "three hundred twelve billion, three hundred ten million, four hundred twenty-three thousand, three hundred forty-five".

Divisors: 1 5 2593 12965 24088733 120443665 62462084669 312310423345