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311340214451 = 7171892587537
BaseRepresentation
bin1001000011111010101…
…00101010100010110011
31002202121211112121110202
410201331110222202303
520100111043330301
6355005553145415
731331205105140
oct4417524524263
91082554477422
10311340214451
11110047486262
125040b25b26b
1323489394386
14110d72933c7
15817305266b
hex487d52a8b3

311340214451 has 8 divisors (see below), whose sum is σ = 355838225760. Its totient is φ = 266847412608.

The previous prime is 311340214399. The next prime is 311340214553. The reversal of 311340214451 is 154412043113.

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

It is not a de Polignac number, because 311340214451 - 230 = 310266472627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311340219451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1173446 + ... + 1414091.

It is an arithmetic number, because the mean of its divisors is an integer number (44479778220).

Almost surely, 2311340214451 is an apocalyptic number.

311340214451 is a deficient number, since it is larger than the sum of its proper divisors (44498011309).

311340214451 is a wasteful number, since it uses less digits than its factorization.

311340214451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2604733.

The product of its (nonzero) digits is 5760, while the sum is 29.

Adding to 311340214451 its reverse (154412043113), we get a palindrome (465752257564).

The spelling of 311340214451 in words is "three hundred eleven billion, three hundred forty million, two hundred fourteen thousand, four hundred fifty-one".

Divisors: 1 7 17189 120323 2587537 18112759 44477173493 311340214451