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389380982 = 21511289341
BaseRepresentation
bin10111001101010…
…111101101110110
31000010200121021212
4113031113231312
51244140142412
6102345441422
712435453344
oct2715275566
91003617255
10389380982
1118a882771
12aa4a0272
1362894063
14399dc994
15242b7222
hex17357b76

389380982 has 8 divisors (see below), whose sum is σ = 587939952. Its totient is φ = 193401000.

The previous prime is 389380973. The next prime is 389380991. The reversal of 389380982 is 289083983.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (389380973) and next prime (389380991).

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

It is a self number, because there is not a number n which added to its sum of digits gives 389380982.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 644369 + ... + 644972.

It is an arithmetic number, because the mean of its divisors is an integer number (73492494).

Almost surely, 2389380982 is an apocalyptic number.

389380982 is a deficient number, since it is larger than the sum of its proper divisors (198558970).

389380982 is a wasteful number, since it uses less digits than its factorization.

389380982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1289494.

The product of its (nonzero) digits is 746496, while the sum is 50.

The square root of 389380982 is about 19732.7388367657. The cubic root of 389380982 is about 730.2276027645.

The spelling of 389380982 in words is "three hundred eighty-nine million, three hundred eighty thousand, nine hundred eighty-two".

Divisors: 1 2 151 302 1289341 2578682 194690491 389380982