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31070346469 is a prime number
BaseRepresentation
bin11100111011111011…
…111101110011100101
32222012100100010200221
4130323323331303211
51002113002041334
622135025204341
72146644405331
oct347373756345
988170303627
1031070346469
11121a4445198
1260314906b1
132c120626c6
14170a6687c1
15c1caa38b4
hex73befdce5

31070346469 has 2 divisors, whose sum is σ = 31070346470. Its totient is φ = 31070346468.

The previous prime is 31070346343. The next prime is 31070346479. The reversal of 31070346469 is 96464307013.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28523832100 + 2546514369 = 168890^2 + 50463^2 .

It is a cyclic number.

It is not a de Polignac number, because 31070346469 - 225 = 31036792037 is a prime.

It is a super-2 number, since 2×310703464692 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31070346479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15535173234 + 15535173235.

It is an arithmetic number, because the mean of its divisors is an integer number (15535173235).

Almost surely, 231070346469 is an apocalyptic number.

It is an amenable number.

31070346469 is a deficient number, since it is larger than the sum of its proper divisors (1).

31070346469 is an equidigital number, since it uses as much as digits as its factorization.

31070346469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 43.

The spelling of 31070346469 in words is "thirty-one billion, seventy million, three hundred forty-six thousand, four hundred sixty-nine".