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315641084 = 221126110691
BaseRepresentation
bin10010110100000…
…100110011111100
3210222221020011112
4102310010303330
51121301003314
651153141152
710551622253
oct2264046374
9728836145
10315641084
11152197900
128985a7b8
1350516195
142dcc579a
151ca9d43e
hex12d04cfc

315641084 has 36 divisors (see below), whose sum is σ = 617163624. Its totient is φ = 141108000.

The previous prime is 315641071. The next prime is 315641089. The reversal of 315641084 is 480146513.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 315641084.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315641089) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24179 + ... + 34869.

It is an arithmetic number, because the mean of its divisors is an integer number (17143434).

Almost surely, 2315641084 is an apocalyptic number.

It is an amenable number.

315641084 is a deficient number, since it is larger than the sum of its proper divisors (301522540).

315641084 is a wasteful number, since it uses less digits than its factorization.

315641084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10778 (or 10765 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 315641084 is about 17766.2906651895. The cubic root of 315641084 is about 680.8704855395.

Adding to 315641084 its reverse (480146513), we get a palindrome (795787597).

The spelling of 315641084 in words is "three hundred fifteen million, six hundred forty-one thousand, eighty-four".

Divisors: 1 2 4 11 22 44 61 121 122 242 244 484 671 1342 2684 7381 10691 14762 21382 29524 42764 117601 235202 470404 652151 1293611 1304302 2587222 2608604 5174444 7173661 14347322 28694644 78910271 157820542 315641084