Base | Representation |
---|---|

bin | 111010110101000… |

… | …110101001011110 |

3 | 2112210012202121222 |

4 | 322311012221132 |

5 | 4010132440030 |

6 | 241534453342 |

7 | 33313233146 |

oct | 7265065136 |

9 | 2483182558 |

10 | 986999390 |

11 | 467154283 |

12 | 236664252 |

13 | 129637910 |

14 | 95125926 |

15 | 5b9b43e5 |

hex | 3ad46a5e |

986999390 has 64 divisors (see below), whose sum is σ = 2012677632. Its totient is φ = 345945600.

The previous prime is 986999381. The next prime is 986999401. The reversal of 986999390 is 93999689.

It is a Harshad number since it is a multiple of its sum of digits (62).

It is a fibodiv number, since the Fibonacci-like sequence with seeds 986 and 999390 contains 986999390 itself.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 211280 + ... + 215900.

It is an arithmetic number, because the mean of its divisors is an integer number (31448088).

Almost surely, 2^{986999390} is an apocalyptic number.

986999390 is an abundant number, since it is smaller than the sum of its proper divisors (1025678242).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

986999390 is a wasteful number, since it uses less digits than its factorization.

986999390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4725.

The product of its (nonzero) digits is 8503056, while the sum is 62.

The square root of 986999390 is about 31416.5464365516. The cubic root of 986999390 is about 995.6475469700.

The spelling of 986999390 in words is "nine hundred eighty-six million, nine hundred ninety-nine thousand, three hundred ninety".

Divisors: 1 2 5 10 13 26 31 53 62 65 106 130 155 265 310 403 530 689 806 1378 1643 2015 3286 3445 4030 4621 6890 8215 9242 16430 21359 23105 42718 46210 60073 106795 120146 143251 213590 244913 286502 300365 489826 600730 716255 1224565 1432510 1862263 2449130 3183869 3724526 6367738 7592303 9311315 15184606 15919345 18622630 31838690 37961515 75923030 98699939 197399878 493499695 986999390

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