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315998001 = 32113191899
BaseRepresentation
bin10010110101011…
…011111100110001
3211000121100202200
4102311123330301
51121343414001
651204533413
710554636654
oct2265337461
9730540680
10315998001
11152410a80
12899b1269
135060c787
142dd7989b
151cb1e086
hex12d5bf31

315998001 has 12 divisors (see below), whose sum is σ = 497936400. Its totient is φ = 191513880.

The previous prime is 315997951. The next prime is 315998017. The reversal of 315998001 is 100899513.

It is a happy number.

It is not a de Polignac number, because 315998001 - 29 = 315997489 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (315998021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1595851 + ... + 1596048.

It is an arithmetic number, because the mean of its divisors is an integer number (41494700).

Almost surely, 2315998001 is an apocalyptic number.

It is an amenable number.

315998001 is a deficient number, since it is larger than the sum of its proper divisors (181938399).

315998001 is a wasteful number, since it uses less digits than its factorization.

315998001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3191916 (or 3191913 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 36.

The square root of 315998001 is about 17776.3326082744. The cubic root of 315998001 is about 681.1270245045.

The spelling of 315998001 in words is "three hundred fifteen million, nine hundred ninety-eight thousand, one".

Divisors: 1 3 9 11 33 99 3191899 9575697 28727091 35110889 105332667 315998001