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317153742 = 23291718121
BaseRepresentation
bin10010111001110…
…110000111001110
3211002210002010220
4102321312013032
51122142404432
651245412210
710600522323
oct2271660716
9732702126
10317153742
11153030334
128a26a066
1350925849
143019ab4a
151cc9b72c
hex12e761ce

317153742 has 16 divisors (see below), whose sum is σ = 634559952. Its totient is φ = 105675840.

The previous prime is 317153723. The next prime is 317153743. The reversal of 317153742 is 247351713.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317153743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8442 + ... + 26562.

It is an arithmetic number, because the mean of its divisors is an integer number (39659997).

Almost surely, 2317153742 is an apocalyptic number.

317153742 is an abundant number, since it is smaller than the sum of its proper divisors (317406210).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

317153742 is a wasteful number, since it uses less digits than its factorization.

317153742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21043.

The product of its digits is 17640, while the sum is 33.

The square root of 317153742 is about 17808.8107969061. The cubic root of 317153742 is about 681.9564059704.

The spelling of 317153742 in words is "three hundred seventeen million, one hundred fifty-three thousand, seven hundred forty-two".

Divisors: 1 2 3 6 2917 5834 8751 17502 18121 36242 54363 108726 52858957 105717914 158576871 317153742