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315020001 = 3119388019
BaseRepresentation
bin10010110001101…
…101001011100001
3210221202200012110
4102301231023201
51121121120001
651131545533
710543424442
oct2261551341
9727680173
10315020001
1115190320a
12895bb2a9
135035958a
142dba32c9
151c9c93d6
hex12c6d2e1

315020001 has 8 divisors (see below), whose sum is σ = 420383520. Its totient is φ = 209834912.

The previous prime is 315019973. The next prime is 315020003. The reversal of 315020001 is 100020513.

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

It is a cyclic number.

It is not a de Polignac number, because 315020001 - 211 = 315017953 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (315020003) 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, 40431 + ... + 47588.

It is an arithmetic number, because the mean of its divisors is an integer number (52547940).

Almost surely, 2315020001 is an apocalyptic number.

It is an amenable number.

315020001 is a deficient number, since it is larger than the sum of its proper divisors (105363519).

315020001 is a wasteful number, since it uses less digits than its factorization.

315020001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89215.

The product of its (nonzero) digits is 30, while the sum is 12.

The square root of 315020001 is about 17748.8028046964. The cubic root of 315020001 is about 680.4236122055.

Adding to 315020001 its reverse (100020513), we get a palindrome (415040514).

The spelling of 315020001 in words is "three hundred fifteen million, twenty thousand, one".

Divisors: 1 3 1193 3579 88019 264057 105006667 315020001