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317908029 = 3105969343
BaseRepresentation
bin10010111100101…
…110010000111101
3211011012101211110
4102330232100331
51122341024104
651313512233
710610113365
oct2274562075
9734171743
10317908029
111534a600a
128a572679
1350b2ac7a
14303159a5
151cd99e89
hex12f2e43d

317908029 has 4 divisors (see below), whose sum is σ = 423877376. Its totient is φ = 211938684.

The previous prime is 317908013. The next prime is 317908037. The reversal of 317908029 is 920809713.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 317908029 - 24 = 317908013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317908009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52984669 + ... + 52984674.

It is an arithmetic number, because the mean of its divisors is an integer number (105969344).

Almost surely, 2317908029 is an apocalyptic number.

It is an amenable number.

317908029 is a deficient number, since it is larger than the sum of its proper divisors (105969347).

317908029 is a wasteful number, since it uses less digits than its factorization.

317908029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105969346.

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 317908029 is about 17829.9755748571. The cubic root of 317908029 is about 682.4966104301.

The spelling of 317908029 in words is "three hundred seventeen million, nine hundred eight thousand, twenty-nine".

Divisors: 1 3 105969343 317908029