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311420355401 = 6171224141233
BaseRepresentation
bin1001000100000100001…
…10011000001101001001
31002202211102100012012002
410202002012120031021
520100242102333101
6355021535000345
731333200226211
oct4420206301511
91082742305162
10311420355401
11110088743351
12504320690b5
132349cb7395c
1411103b95241
15817a0d2d6b
hex4882198349

311420355401 has 8 divisors (see below), whose sum is σ = 311958136104. Its totient is φ = 310882682880.

The previous prime is 311420355341. The next prime is 311420355461. The reversal of 311420355401 is 104553024113.

It is an interprime number because it is at equal distance from previous prime (311420355341) and next prime (311420355461).

It can be written as a sum of positive squares in 4 ways, for example, as 2956749376 + 308463606025 = 54376^2 + 555395^2 .

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 311420355401 - 226 = 311353246537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311420355461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7532081 + ... + 7573313.

It is an arithmetic number, because the mean of its divisors is an integer number (38994767013).

Almost surely, 2311420355401 is an apocalyptic number.

It is an amenable number.

311420355401 is a deficient number, since it is larger than the sum of its proper divisors (537780703).

311420355401 is a wasteful number, since it uses less digits than its factorization.

311420355401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54091.

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 311420355401 its reverse (104553024113), we get a palindrome (415973379514).

The spelling of 311420355401 in words is "three hundred eleven billion, four hundred twenty million, three hundred fifty-five thousand, four hundred one".

Divisors: 1 617 12241 41233 7552697 25440761 504733153 311420355401