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31112162112235 = 547720718369943
BaseRepresentation
bin1110001001011110111010…
…10111101111001011101011
311002011021221001220211202011
413010233131113233023223
513034220202000042420
6150100421401020351
76360531244355011
oct704573527571353
9132137831824664
1031112162112235
119a05659468a76
1235a58b41846b7
131448b30b2c029
14797b9dbd08b1
1538e47336d95a
hex1c4bdd5ef2eb

31112162112235 has 16 divisors (see below), whose sum is σ = 38134240229376. Its totient is φ = 24356779577568.

The previous prime is 31112162112233. The next prime is 31112162112253. The reversal of 31112162112235 is 53221126121113.

It is a cyclic number.

It is not a de Polignac number, because 31112162112235 - 21 = 31112162112233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31112162112197 and 31112162112206.

It is not an unprimeable number, because it can be changed into a prime (31112162112233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7491327 + ... + 10878616.

It is an arithmetic number, because the mean of its divisors is an integer number (2383390014336).

Almost surely, 231112162112235 is an apocalyptic number.

31112162112235 is a deficient number, since it is larger than the sum of its proper divisors (7022078117141).

31112162112235 is a wasteful number, since it uses less digits than its factorization.

31112162112235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18377202.

The product of its digits is 4320, while the sum is 31.

Adding to 31112162112235 its reverse (53221126121113), we get a palindrome (84333288233348).

The spelling of 31112162112235 in words is "thirty-one trillion, one hundred twelve billion, one hundred sixty-two million, one hundred twelve thousand, two hundred thirty-five".

Divisors: 1 5 47 235 7207 36035 338729 1693645 18369943 91849715 863387321 4316936605 132392179201 661960896005 6222432422447 31112162112235