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317469942 = 2348997227
BaseRepresentation
bin10010111011000…
…011010011110110
3211010101010220000
4102323003103312
51122233014232
651300252130
710603310226
oct2273032366
9733333800
10317469942
11153226959
128a3a1046
1350a0674a
1430240086
151cd1027c
hex12ec34f6

317469942 has 80 divisors (see below), whose sum is σ = 729978480. Its totient is φ = 103099392.

The previous prime is 317469941. The next prime is 317469961. The reversal of 317469942 is 249964713.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317469941) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1398433 + ... + 1398659.

It is an arithmetic number, because the mean of its divisors is an integer number (9124731).

Almost surely, 2317469942 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 317469942, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (364989240).

317469942 is an abundant number, since it is smaller than the sum of its proper divisors (412508538).

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

317469942 is a wasteful number, since it uses less digits than its factorization.

317469942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427 (or 418 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 317469942 is about 17817.6862134229. The cubic root of 317469942 is about 682.1829659051.

The spelling of 317469942 in words is "three hundred seventeen million, four hundred sixty-nine thousand, nine hundred forty-two".

Divisors: 1 2 3 6 9 18 27 54 81 89 97 162 178 194 227 267 291 454 534 582 681 801 873 1362 1602 1746 2043 2403 2619 4086 4806 5238 6129 7209 7857 8633 12258 14418 15714 17266 18387 20203 22019 25899 36774 40406 44038 51798 60609 66057 77697 121218 132114 155394 181827 198171 233091 363654 396342 466182 545481 594513 699273 1090962 1189026 1398546 1636443 1783539 1959691 3272886 3567078 3919382 5879073 11758146 17637219 35274438 52911657 105823314 158734971 317469942