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311202110113 = 19137379315449
BaseRepresentation
bin1001000011101010001…
…01110101101010100001
31002202021012200011221021
410201311011311222201
520044320220010423
6354544141125441
731324610201446
oct4416505655241
91082235604837
10311202110113
1110aa86529444
1250390b59881
132346689bb2b
14110c2bc39cd
158165d7295d
hex4875175aa1

311202110113 has 16 divisors (see below), whose sum is σ = 330843960000. Its totient is φ = 291897914112.

The previous prime is 311202110083. The next prime is 311202110119. The reversal of 311202110113 is 311011202113.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 311202110113 - 213 = 311202101921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (311202110119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 828813 + ... + 1144261.

It is an arithmetic number, because the mean of its divisors is an integer number (20677747500).

Almost surely, 2311202110113 is an apocalyptic number.

It is an amenable number.

311202110113 is a deficient number, since it is larger than the sum of its proper divisors (19641849887).

311202110113 is a wasteful number, since it uses less digits than its factorization.

311202110113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315984.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 311202110113 its reverse (311011202113), we get a palindrome (622213312226).

The spelling of 311202110113 in words is "three hundred eleven billion, two hundred two million, one hundred ten thousand, one hundred thirteen".

Divisors: 1 19 137 379 2603 7201 51923 315449 986537 5993531 43216513 119555171 821113747 2271548249 16379058427 311202110113