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168385847057701 = 71310212113857707
BaseRepresentation
bin100110010010010101100010…
…100110010101110100100101
3211002012112022012101212010221
4212102111202212111310211
5134032313203321321301
61354043220142444341
750316322156156630
oct4622254246256445
9732175265355127
10168385847057701
1149720044943889
1216a7637b5936b1
1372c5942a28840
142d81cc0460c17
15147018043bda1
hex992562995d25

168385847057701 has 32 divisors (see below), whose sum is σ = 207545519514368. Its totient is φ = 133034729287680.

The previous prime is 168385847057653. The next prime is 168385847057711. The reversal of 168385847057701 is 107750748583861.

It is a cyclic number.

It is not a de Polignac number, because 168385847057701 - 219 = 168385846533413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168385847057711) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 195892090 + ... + 196749796.

It is an arithmetic number, because the mean of its divisors is an integer number (6485797484824).

Almost surely, 2168385847057701 is an apocalyptic number.

It is an amenable number.

168385847057701 is a deficient number, since it is larger than the sum of its proper divisors (39159672456667).

168385847057701 is a wasteful number, since it uses less digits than its factorization.

168385847057701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860861.

The product of its (nonzero) digits is 316108800, while the sum is 70.

The spelling of 168385847057701 in words is "one hundred sixty-eight trillion, three hundred eighty-five billion, eight hundred forty-seven million, fifty-seven thousand, seven hundred one".

Divisors: 1 7 13 91 1021 2113 7147 13273 14791 27469 92911 192283 857707 2157373 6003949 11150191 15101611 28045849 78051337 196320943 875718847 1812334891 6130031929 11384345011 12686344237 23560353583 79690415077 164922475081 1850393923711 12952757465977 24055121008243 168385847057701