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316485090 = 233517192191
BaseRepresentation
bin10010110111010…
…010110111100010
3211001112002221000
4102313102313202
51122010010330
651223212430
710562036025
oct2267226742
9731462830
10316485090
11152713a29
1289ba7116
13507503ac
14300651bc
151cbb8560
hex12dd2de2

316485090 has 192 divisors, whose sum is σ = 948049920. Its totient is φ = 74856960.

The previous prime is 316485079. The next prime is 316485137. The reversal of 316485090 is 90584613.

316485090 is a `hidden beast` number, since 3 + 1 + 648 + 5 + 0 + 9 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1656895 + ... + 1657085.

It is an arithmetic number, because the mean of its divisors is an integer number (4937760).

Almost surely, 2316485090 is an apocalyptic number.

316485090 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 316485090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (474024960).

316485090 is an abundant number, since it is smaller than the sum of its proper divisors (631564830).

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

316485090 is a wasteful number, since it uses less digits than its factorization.

316485090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262 (or 237 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 316485090 is about 17790.0278245988. The cubic root of 316485090 is about 681.4768148613.

The spelling of 316485090 in words is "three hundred sixteen million, four hundred eighty-five thousand, ninety".