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316230605 = 5401157721
BaseRepresentation
bin10010110110010…
…100101111001101
3211001001011211122
4102312110233031
51121423334410
651213530325
710556626055
oct2266245715
9731034748
10316230605
1115255a809
1289aa39a5
1350691602
142ddda565
151cb67e55
hex12d94bcd

316230605 has 8 divisors (see below), whose sum is σ = 380425464. Its totient is φ = 252352000.

The previous prime is 316230599. The next prime is 316230637. The reversal of 316230605 is 506032613.

It can be written as a sum of positive squares in 4 ways, for example, as 179854921 + 136375684 = 13411^2 + 11678^2 .

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

It is not a de Polignac number, because 316230605 - 224 = 299453389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76856 + ... + 80865.

It is an arithmetic number, because the mean of its divisors is an integer number (47553183).

Almost surely, 2316230605 is an apocalyptic number.

It is an amenable number.

316230605 is a deficient number, since it is larger than the sum of its proper divisors (64194859).

316230605 is a wasteful number, since it uses less digits than its factorization.

316230605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158127.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 316230605 is about 17782.8739240877. The cubic root of 316230605 is about 681.2941078531.

The spelling of 316230605 in words is "three hundred sixteen million, two hundred thirty thousand, six hundred five".

Divisors: 1 5 401 2005 157721 788605 63246121 316230605