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316053521 = 747960649
BaseRepresentation
bin10010110101101…
…001100000010001
3211000201011220222
4102311221200101
51121402203041
651210042425
710555260560
oct2265514021
9730634828
10316053521
11152449763
1289a19415
135062bb24
142dd91bd7
151cb3074b
hex12d69811

316053521 has 8 divisors (see below), whose sum is σ = 368889600. Its totient is φ = 265138848.

The previous prime is 316053509. The next prime is 316053559. The reversal of 316053521 is 125350613.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-316053521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (316053421) 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, 479996 + ... + 480653.

It is an arithmetic number, because the mean of its divisors is an integer number (46111200).

Almost surely, 2316053521 is an apocalyptic number.

It is an amenable number.

316053521 is a deficient number, since it is larger than the sum of its proper divisors (52836079).

316053521 is an equidigital number, since it uses as much as digits as its factorization.

316053521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 960703.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 316053521 is about 17777.8941666329. The cubic root of 316053521 is about 681.1669128981.

The spelling of 316053521 in words is "three hundred sixteen million, fifty-three thousand, five hundred twenty-one".

Divisors: 1 7 47 329 960649 6724543 45150503 316053521