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126871013317 = 1391530759629
BaseRepresentation
bin111011000101000011…
…0100000011111000101
3110010110212012020211011
41312022012200133011
54034312434411232
6134141142042221
712110660551126
oct1661206403705
9403425166734
10126871013317
114989541a124
1220708a19371
13bc6b86ab19
1461d7ac804d
1534782e1547
hex1d8a1a07c5

126871013317 has 8 divisors (see below), whose sum is σ = 127794245600. Its totient is φ = 125947931184.

The previous prime is 126871013309. The next prime is 126871013393. The reversal of 126871013317 is 713310178621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 126871013317 - 23 = 126871013309 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 126871013317.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126871013917) 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 7 ways as a sum of consecutive naturals, for example, 2097859 + ... + 2157487.

It is an arithmetic number, because the mean of its divisors is an integer number (15974280700).

Almost surely, 2126871013317 is an apocalyptic number.

It is an amenable number.

126871013317 is a deficient number, since it is larger than the sum of its proper divisors (923232283).

126871013317 is a wasteful number, since it uses less digits than its factorization.

126871013317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75075.

The product of its (nonzero) digits is 42336, while the sum is 40.

The spelling of 126871013317 in words is "one hundred twenty-six billion, eight hundred seventy-one million, thirteen thousand, three hundred seventeen".

Divisors: 1 139 15307 59629 2127673 8288431 912741103 126871013317