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312114021421 = 1976079215921
BaseRepresentation
bin1001000101010110111…
…00100000010000101101
31002211121202121002002011
410202223130200100231
520103202142141141
6355214434401221
731356322260136
oct4425334402055
91084552532064
10312114021421
11110404256954
12505a6430211
13235807a6017
141116bd60c8d
1581bae53881
hex48ab72042d

312114021421 has 8 divisors (see below), whose sum is σ = 328546915200. Its totient is φ = 295681711680.

The previous prime is 312114021403. The next prime is 312114021449. The reversal of 312114021421 is 124120411213.

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 312114021421 - 217 = 312113890349 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312114021392 and 312114021401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312114021221) 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, 1337541 + ... + 1553461.

It is an arithmetic number, because the mean of its divisors is an integer number (41068364400).

Almost surely, 2312114021421 is an apocalyptic number.

It is an amenable number.

312114021421 is a deficient number, since it is larger than the sum of its proper divisors (16432893779).

312114021421 is a wasteful number, since it uses less digits than its factorization.

312114021421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292019.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 312114021421 its reverse (124120411213), we get a palindrome (436234432634).

The spelling of 312114021421 in words is "three hundred twelve billion, one hundred fourteen million, twenty-one thousand, four hundred twenty-one".

Divisors: 1 19 76079 215921 1445501 4102499 16427053759 312114021421