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275642712417157 = 2924182947574797
BaseRepresentation
bin111110101011001000010001…
…111101010110001110000101
31100010222012000120011121121121
4332223020101331112032011
5242112112233334322112
62414124303003113541
7112026346242202411
oct7653102175261605
91303865016147547
10275642712417157
117a912466194738
1226ab94a28128b1
13baa5cc49b0157
144c0d26d9c9d41
1521d0175ce5407
hexfab211f56385

275642712417157 has 16 divisors (see below), whose sum is σ = 286676217788400. Its totient is φ = 264713776911360.

The previous prime is 275642712417091. The next prime is 275642712417161. The reversal of 275642712417157 is 751714217246572.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 5337513813636 + 270305198603521 = 2310306^2 + 16440961^2 .

It is a cyclic number.

It is not a de Polignac number, because 275642712417157 - 231 = 275640564933509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 275642712417095 and 275642712417104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275642712417197) 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, 17993518 + ... + 29581279.

It is an arithmetic number, because the mean of its divisors is an integer number (17917263611775).

Almost surely, 2275642712417157 is an apocalyptic number.

It is an amenable number.

275642712417157 is a deficient number, since it is larger than the sum of its proper divisors (11033505371243).

275642712417157 is a wasteful number, since it uses less digits than its factorization.

275642712417157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47575896.

The product of its digits is 46099200, while the sum is 61.

The spelling of 275642712417157 in words is "two hundred seventy-five trillion, six hundred forty-two billion, seven hundred twelve million, four hundred seventeen thousand, one hundred fifty-seven".

Divisors: 1 29 241 829 6989 24041 199789 5793881 47574797 1379669113 11465526077 39439506713 332500256233 1143745694677 9504921117833 275642712417157