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247052113 = 711231972
BaseRepresentation
bin11101011100110…
…11011101010001
3122012212112210021
432232123131101
51001221131423
640303103441
76056623360
oct1656333521
9565775707
10247052113
111174aaa00
126a8a1b81
133c24c9a9
1424b4d7d7
1516a5095d
hexeb9b751

247052113 has 36 divisors (see below), whose sum is σ = 323694336. Its totient is φ = 184377600.

The previous prime is 247052107. The next prime is 247052119. The reversal of 247052113 is 311250742.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (247052107) and next prime (247052119).

It is not a de Polignac number, because 247052113 - 25 = 247052081 is a prime.

It is a super-2 number, since 2×2470521132 = 122069493075529538, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (247052119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2546881 + ... + 2546977.

Almost surely, 2247052113 is an apocalyptic number.

It is an amenable number.

247052113 is a deficient number, since it is larger than the sum of its proper divisors (76642223).

247052113 is an equidigital number, since it uses as much as digits as its factorization.

247052113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254 (or 146 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 247052113 is about 15717.8914934542. The cubic root of 247052113 is about 627.4746585323.

The spelling of 247052113 in words is "two hundred forty-seven million, fifty-two thousand, one hundred thirteen".

Divisors: 1 7 11 31 77 97 121 217 341 679 847 1067 2387 3007 3751 7469 9409 11737 21049 26257 33077 65863 82159 103499 231539 291679 363847 724493 1138489 2041753 2546929 3208469 7969423 22459283 35293159 247052113