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313303141 = 1982919891
BaseRepresentation
bin10010101011001…
…010000001100101
3210211112110010001
4102223022001211
51120201200031
651031101301
710523014144
oct2253120145
9724473101
10313303141
11150940318
1288b11831
134cba7c98
142d87775b
151c78a861
hex12aca065

313303141 has 8 divisors (see below), whose sum is σ = 330207200. Its totient is φ = 296440560.

The previous prime is 313303121. The next prime is 313303147. The reversal of 313303141 is 141303313.

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 313303141 - 219 = 312778853 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313303147) 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, 5806 + ... + 25696.

It is an arithmetic number, because the mean of its divisors is an integer number (41275900).

Almost surely, 2313303141 is an apocalyptic number.

It is an amenable number.

313303141 is a deficient number, since it is larger than the sum of its proper divisors (16904059).

313303141 is a wasteful number, since it uses less digits than its factorization.

313303141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20739.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 313303141 is about 17700.3712107967. The cubic root of 313303141 is about 679.1852561805.

Adding to 313303141 its reverse (141303313), we get a palindrome (454606454).

The spelling of 313303141 in words is "three hundred thirteen million, three hundred three thousand, one hundred forty-one".

Divisors: 1 19 829 15751 19891 377929 16489639 313303141