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169945798713 = 31719783920161
BaseRepresentation
bin1001111001000110001…
…1110001100000111001
3121020122211000001221020
42132101203301200321
510241022111024323
6210023320133053
715164262311625
oct2362143614071
9536584001836
10169945798713
1166089a77a19
1228b2a607189
131304495a612
1483227a8185
154649be0ae3
hex27918f1839

169945798713 has 32 divisors (see below), whose sum is σ = 241440756480. Its totient is φ = 105959669760.

The previous prime is 169945798697. The next prime is 169945798717. The reversal of 169945798713 is 317897549961.

It is not a de Polignac number, because 169945798713 - 24 = 169945798697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (169945798717) 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, 8419353 + ... + 8439513.

It is an arithmetic number, because the mean of its divisors is an integer number (7545023640).

Almost surely, 2169945798713 is an apocalyptic number.

It is an amenable number.

169945798713 is a deficient number, since it is larger than the sum of its proper divisors (71494957767).

169945798713 is a wasteful number, since it uses less digits than its factorization.

169945798713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21217.

The product of its digits is 102876480, while the sum is 69.

The spelling of 169945798713 in words is "one hundred sixty-nine billion, nine hundred forty-five million, seven hundred ninety-eight thousand, seven hundred thirteen".

Divisors: 1 3 17 51 197 591 839 2517 3349 10047 14263 20161 42789 60483 165283 342737 495849 1028211 2809811 3971717 8429433 11915151 16915079 50745237 67519189 202557567 287556343 862669029 3332270563 9996811689 56648599571 169945798713