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1982382382 = 2991191191
BaseRepresentation
bin111011000101000…
…1100000100101110
312010011012110101201
41312022030010232
513024442214012
6524413200114
7100060654321
oct16612140456
95104173351
101982382382
11928004252
12473a9003a
13257919436
1414b3d07b8
15b9082857
hex7628c12e

1982382382 has 4 divisors (see below), whose sum is σ = 2973573576. Its totient is φ = 991191190.

The previous prime is 1982382341. The next prime is 1982382401. The reversal of 1982382382 is 2832832891.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2832832891 = 7404690413.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 495595594 + ... + 495595597.

It is an arithmetic number, because the mean of its divisors is an integer number (743393394).

Almost surely, 21982382382 is an apocalyptic number.

1982382382 is a deficient number, since it is larger than the sum of its proper divisors (991191194).

1982382382 is an equidigital number, since it uses as much as digits as its factorization.

1982382382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991191193.

The product of its digits is 331776, while the sum is 46.

The square root of 1982382382 is about 44523.9529017809. The cubic root of 1982382382 is about 1256.2106658245.

The spelling of 1982382382 in words is "one billion, nine hundred eighty-two million, three hundred eighty-two thousand, three hundred eighty-two".

Divisors: 1 2 991191191 1982382382