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31058835307853 = 102130420014993
BaseRepresentation
bin1110000111111011100101…
…10110000111110101001101
311001222012021122010111110012
413003331302312013311031
513032331443314322403
6150020122034323005
76353632615121063
oct703756266076515
9131865248114405
1031058835307853
119994a83913611
1235974b1129465
131443ab2a83702
14795381708033
1538cda18cded8
hex1c3f72d87d4d

31058835307853 has 4 divisors (see below), whose sum is σ = 31089255323868. Its totient is φ = 31028415291840.

The previous prime is 31058835307847. The next prime is 31058835307979. The reversal of 31058835307853 is 35870353885013.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6140548428169 + 24918286879684 = 2478013^2 + 4991822^2 .

It is a cyclic number.

It is not a de Polignac number, because 31058835307853 - 232 = 31054540340557 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31058835307792 and 31058835307801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31058835307813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15210006476 + ... + 15210008517.

It is an arithmetic number, because the mean of its divisors is an integer number (7772313830967).

Almost surely, 231058835307853 is an apocalyptic number.

It is an amenable number.

31058835307853 is a deficient number, since it is larger than the sum of its proper divisors (30420016015).

31058835307853 is a wasteful number, since it uses less digits than its factorization.

31058835307853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30420016014.

The product of its (nonzero) digits is 36288000, while the sum is 59.

The spelling of 31058835307853 in words is "thirty-one trillion, fifty-eight billion, eight hundred thirty-five million, three hundred seven thousand, eight hundred fifty-three".

Divisors: 1 1021 30420014993 31058835307853