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315116342 = 2157558171
BaseRepresentation
bin10010110010000…
…100101100110110
3210221221120100122
4102302010230312
51121132210332
651134011542
710544305352
oct2262045466
9727846318
10315116342
11151969632
1289646bb2
1350391398
142dbca462
151c9e7c12
hex12c84b36

315116342 has 4 divisors (see below), whose sum is σ = 472674516. Its totient is φ = 157558170.

The previous prime is 315116299. The next prime is 315116357. The reversal of 315116342 is 243611513.

It is a semiprime because it is the product of two primes.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 78779084 + ... + 78779087.

It is an arithmetic number, because the mean of its divisors is an integer number (118168629).

Almost surely, 2315116342 is an apocalyptic number.

315116342 is a deficient number, since it is larger than the sum of its proper divisors (157558174).

315116342 is a wasteful number, since it uses less digits than its factorization.

315116342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157558173.

The product of its digits is 2160, while the sum is 26.

The square root of 315116342 is about 17751.5166112645. The cubic root of 315116342 is about 680.4929686586.

Adding to 315116342 its reverse (243611513), we get a palindrome (558727855).

The spelling of 315116342 in words is "three hundred fifteen million, one hundred sixteen thousand, three hundred forty-two".

Divisors: 1 2 157558171 315116342