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311200030051 = 2937290027987
BaseRepresentation
bin1001000011101001111…
…01111001110101100011
31002202021001202111121221
410201310331321311203
520044314201430201
6354544024355511
731324553416231
oct4416475716543
91082231674557
10311200030051
1110aa85338689
1250390315b97
1323466321121
14110c2801951
158165ab14a1
hex4874f79d63

311200030051 has 8 divisors (see below), whose sum is σ = 330631906320. Its totient is φ = 292348209888.

The previous prime is 311200030033. The next prime is 311200030081. The reversal of 311200030051 is 150030002113.

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 311200030051 - 25 = 311200030019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311200030081) 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, 145012921 + ... + 145015066.

It is an arithmetic number, because the mean of its divisors is an integer number (41328988290).

Almost surely, 2311200030051 is an apocalyptic number.

311200030051 is a deficient number, since it is larger than the sum of its proper divisors (19431876269).

311200030051 is a wasteful number, since it uses less digits than its factorization.

311200030051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290028053.

The product of its (nonzero) digits is 90, while the sum is 16.

Adding to 311200030051 its reverse (150030002113), we get a palindrome (461230032164).

The spelling of 311200030051 in words is "three hundred eleven billion, two hundred million, thirty thousand, fifty-one".

Divisors: 1 29 37 1073 290027987 8410811623 10731035519 311200030051