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1982146313 = 71564718097
BaseRepresentation
bin111011000100101…
…0010011100001001
312010010202110120102
41312021102130021
513024412140223
6524404135145
7100055652140
oct16611223411
95103673512
101982146313
11927962954
124739974b5
13257865b54
1414b36c757
15b9037928
hex76252709

1982146313 has 8 divisors (see below), whose sum is σ = 2265580032. Its totient is φ = 1698780096.

The previous prime is 1982146223. The next prime is 1982146339. The reversal of 1982146313 is 3136412891.

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 1982146313 - 28 = 1982146057 is a prime.

It is a super-2 number, since 2×19821463132 = 7857808012278987938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1982146343) 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, 100481 + ... + 118577.

It is an arithmetic number, because the mean of its divisors is an integer number (283197504).

Almost surely, 21982146313 is an apocalyptic number.

It is an amenable number.

1982146313 is a deficient number, since it is larger than the sum of its proper divisors (283433719).

1982146313 is a wasteful number, since it uses less digits than its factorization.

1982146313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33751.

The product of its digits is 31104, while the sum is 38.

The square root of 1982146313 is about 44521.3017891436. The cubic root of 1982146313 is about 1256.1607991976.

The spelling of 1982146313 in words is "one billion, nine hundred eighty-two million, one hundred forty-six thousand, three hundred thirteen".

Divisors: 1 7 15647 18097 109529 126679 283163759 1982146313