Search a number
-
+
316289071 = 727388423
BaseRepresentation
bin10010110110100…
…011000000101111
3211001011011001001
4102312203000233
51121432222241
651215101131
710560261400
oct2266430057
9731134031
10316289071
1115259a72a
1289b117a7
13506b20c7
14300139a7
151cb7a431
hex12da302f

316289071 has 12 divisors (see below), whose sum is σ = 372972432. Its totient is φ = 267388128.

The previous prime is 316289069. The next prime is 316289081. The reversal of 316289071 is 170982613.

It is not a de Polignac number, because 316289071 - 21 = 316289069 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 316289071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316289011) 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, 40635 + ... + 47788.

It is an arithmetic number, because the mean of its divisors is an integer number (31081036).

Almost surely, 2316289071 is an apocalyptic number.

316289071 is a deficient number, since it is larger than the sum of its proper divisors (56683361).

316289071 is an equidigital number, since it uses as much as digits as its factorization.

316289071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88510 (or 88503 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 316289071 is about 17784.5177331296. The cubic root of 316289071 is about 681.3360920741.

The spelling of 316289071 in words is "three hundred sixteen million, two hundred eighty-nine thousand, seventy-one".

Divisors: 1 7 49 73 511 3577 88423 618961 4332727 6454879 45184153 316289071