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983868389 = 7897392137
BaseRepresentation
bin111010101001001…
…010001111100101
32112120022200200222
4322221022033211
54003332242024
6241343414125
733244512650
oct7251121745
92476280628
10983868389
11465405979
122355b4345
13128aac75a
149494c897
155b59685e
hex3aa4a3e5

983868389 has 16 divisors (see below), whose sum is σ = 1139126400. Its totient is φ = 832322304.

The previous prime is 983868373. The next prime is 983868407.

983868389 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 983868389 - 24 = 983868373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (983868689) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 459329 + ... + 461465.

It is an arithmetic number, because the mean of its divisors is an integer number (71195400).

Almost surely, 2983868389 is an apocalyptic number.

It is an amenable number.

983868389 is a deficient number, since it is larger than the sum of its proper divisors (155258011).

983868389 is a wasteful number, since it uses less digits than its factorization.

983868389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2972.

The product of its digits is 17915904, while the sum is 62.

The square root of 983868389 is about 31366.6764098462. The cubic root of 983868389 is about 994.5936200636.

The spelling of 983868389 in words is "nine hundred eighty-three million, eight hundred sixty-eight thousand, three hundred eighty-nine".

Divisors: 1 7 89 623 739 2137 5173 14959 65771 190193 460397 1331351 1579243 11054701 140552627 983868389