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169016317 = 4392877
BaseRepresentation
bin10100001001011…
…11101111111101
3102210000220210121
422010233233331
5321232010232
624434334541
74121420641
oct1204575775
9383026717
10169016317
1187450508
124872a451
1329029672
1418638c21
15ec88d97
hexa12fbfd

169016317 has 6 divisors (see below), whose sum is σ = 169595358. Its totient is φ = 168439032.

The previous prime is 169016279. The next prime is 169016327. The reversal of 169016317 is 713610961.

It can be written as a sum of positive squares in only one way, i.e., 162078361 + 6937956 = 12731^2 + 2634^2 .

It is not a de Polignac number, because 169016317 - 211 = 169014269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (169016327) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 192283 + ... + 193159.

It is an arithmetic number, because the mean of its divisors is an integer number (28265893).

Almost surely, 2169016317 is an apocalyptic number.

It is an amenable number.

169016317 is a deficient number, since it is larger than the sum of its proper divisors (579041).

169016317 is an frugal number, since it uses more digits than its factorization.

169016317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1755 (or 1316 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 169016317 is about 13000.6275617756. The cubic root of 169016317 is about 552.8952742901.

The spelling of 169016317 in words is "one hundred sixty-nine million, sixteen thousand, three hundred seventeen".

Divisors: 1 439 877 192721 385003 169016317