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1982305288 = 23617951419
BaseRepresentation
bin111011000100111…
…1001010000001000
312010011001112122101
41312021321100020
513024432232123
6524411403144
7100060213465
oct16611712010
95104045571
101982305288
11927a61337
12473a534b4
132578c0312
1414b3b066c
15b9069aad
hex76279408

1982305288 has 32 divisors (see below), whose sum is σ = 3825648000. Its totient is φ = 962544960.

The previous prime is 1982305279. The next prime is 1982305319. The reversal of 1982305288 is 8825032891.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12843 + ... + 64261.

It is an arithmetic number, because the mean of its divisors is an integer number (119551500).

Almost surely, 21982305288 is an apocalyptic number.

It is an amenable number.

1982305288 is a deficient number, since it is larger than the sum of its proper divisors (1843342712).

1982305288 is a wasteful number, since it uses less digits than its factorization.

1982305288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51565 (or 51561 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 46.

The square root of 1982305288 is about 44523.0871346541. The cubic root of 1982305288 is about 1256.1943811155.

The spelling of 1982305288 in words is "one billion, nine hundred eighty-two million, three hundred five thousand, two hundred eighty-eight".

Divisors: 1 2 4 8 61 79 122 158 244 316 488 632 4819 9638 19276 38552 51419 102838 205676 411352 3136559 4062101 6273118 8124202 12546236 16248404 25092472 32496808 247788161 495576322 991152644 1982305288