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312344102220421 = 1935759459721001
BaseRepresentation
bin100011100000100110100011…
…1010000101011001010000101
31111221220210201112001122101211
41013001031013100223022011
5311414421210132023141
63024144522155051421
7122535055012223155
oct10701150720531205
91457823645048354
10312344102220421
1190582431a00577
122b046467a40b71
1310538bcb8375cb
14571b76c886765
152619bc0b3cd81
hex11c134742b285

312344102220421 has 8 divisors (see below), whose sum is σ = 328792460630400. Its totient is φ = 295896663324000.

The previous prime is 312344102220343. The next prime is 312344102220457. The reversal of 312344102220421 is 124022201443213.

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

It is not a de Polignac number, because 312344102220421 - 211 = 312344102218373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312344102220121) 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, 229181080 + ... + 230539921.

It is an arithmetic number, because the mean of its divisors is an integer number (41099057578800).

Almost surely, 2312344102220421 is an apocalyptic number.

It is an amenable number.

312344102220421 is a deficient number, since it is larger than the sum of its proper divisors (16448358409979).

312344102220421 is a wasteful number, since it uses less digits than its factorization.

312344102220421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459756779.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 312344102220421 its reverse (124022201443213), we get a palindrome (436366303663634).

The spelling of 312344102220421 in words is "three hundred twelve trillion, three hundred forty-four billion, one hundred two million, two hundred twenty thousand, four hundred twenty-one".

Divisors: 1 19 35759 679421 459721001 8734699019 16439163274759 312344102220421