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316943020 = 22528355997
BaseRepresentation
bin10010111001000…
…010101010101100
3211002101101002101
4102321002222230
51122114134040
651241104444
710565654062
oct2271025254
9732341071
10316943020
111529a6a89
128a188124
1350880964
1430144032
151cc5909a
hex12e42aac

316943020 has 24 divisors (see below), whose sum is σ = 667944144. Its totient is φ = 126326976.

The previous prime is 316942993. The next prime is 316943057. The reversal of 316943020 is 20349613.

It is a self number, because there is not a number n which added to its sum of digits gives 316943020.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 22339 + ... + 33658.

It is an arithmetic number, because the mean of its divisors is an integer number (27831006).

Almost surely, 2316943020 is an apocalyptic number.

It is an amenable number.

316943020 is an abundant number, since it is smaller than the sum of its proper divisors (351001124).

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

316943020 is a wasteful number, since it uses less digits than its factorization.

316943020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56289 (or 56287 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 316943020 is about 17802.8935850327. The cubic root of 316943020 is about 681.8053382739.

The spelling of 316943020 in words is "three hundred sixteen million, nine hundred forty-three thousand, twenty".

Divisors: 1 2 4 5 10 20 283 566 1132 1415 2830 5660 55997 111994 223988 279985 559970 1119940 15847151 31694302 63388604 79235755 158471510 316943020