Search a number
-
+
317604642 = 231721511213
BaseRepresentation
bin10010111011100…
…100001100100010
3211010121222122220
4102323210030202
51122301322032
651303211510
710604411025
oct2273441442
9733558586
10317604642
11153309083
128a446b96
1350a52b54
14302771bc
151cd3a12c
hex12ee4322

317604642 has 48 divisors (see below), whose sum is σ = 679801152. Its totient is φ = 98899200.

The previous prime is 317604619. The next prime is 317604643. The reversal of 317604642 is 246406713.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (317604643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 261228 + ... + 262440.

It is an arithmetic number, because the mean of its divisors is an integer number (14162524).

Almost surely, 2317604642 is an apocalyptic number.

317604642 is an abundant number, since it is smaller than the sum of its proper divisors (362196510).

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

317604642 is a wasteful number, since it uses less digits than its factorization.

317604642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1403 (or 1386 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 317604642 is about 17821.4657646334. The cubic root of 317604642 is about 682.2794338856.

The spelling of 317604642 in words is "three hundred seventeen million, six hundred four thousand, six hundred forty-two".

Divisors: 1 2 3 6 17 34 51 102 151 289 302 453 578 867 906 1213 1734 2426 2567 3639 5134 7278 7701 15402 20621 41242 43639 61863 87278 123726 130917 183163 261834 350557 366326 549489 701114 1051671 1098978 2103342 3113771 6227542 9341313 18682626 52934107 105868214 158802321 317604642