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80386405397451 = 321723162671404287
BaseRepresentation
bin10010010001110001101011…
…001000110111001111001011
3101112121212100210210000210200
4102101301223020313033023
541014022324240204301
6442545001013143243
722634504030604516
oct2221615310671713
9345555323700720
1080386405397451
11236827571a541a
12902351062ab23
1335b1536b7292a
1415bca1944bd7d
1594607cacbc86
hex491c6b2373cb

80386405397451 has 48 divisors (see below), whose sum is σ = 128297279545344. Its totient is φ = 48242549152512.

The previous prime is 80386405397437. The next prime is 80386405397479. The reversal of 80386405397451 is 15479350468308.

80386405397451 is a `hidden beast` number, since 8 + 0 + 3 + 8 + 6 + 40 + 53 + 97 + 451 = 666.

It is not a de Polignac number, because 80386405397451 - 221 = 80386403300299 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80386405397651) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 56541430 + ... + 57945716.

It is an arithmetic number, because the mean of its divisors is an integer number (2672859990528).

Almost surely, 280386405397451 is an apocalyptic number.

80386405397451 is a deficient number, since it is larger than the sum of its proper divisors (47910874147893).

80386405397451 is a wasteful number, since it uses less digits than its factorization.

80386405397451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1420600 (or 1420597 counting only the distinct ones).

The product of its (nonzero) digits is 87091200, while the sum is 63.

The spelling of 80386405397451 in words is "eighty trillion, three hundred eighty-six billion, four hundred five million, three hundred ninety-seven thousand, four hundred fifty-one".

Divisors: 1 3 9 17 23 51 69 153 207 391 1173 3519 16267 48801 146403 276539 374141 829617 1122423 1404287 2488851 3367269 4212861 6360397 12638583 19081191 23872879 32298601 57243573 71618637 96895803 214855911 290687409 549076217 1647228651 4941685953 22843536629 68530609887 205591829661 388340122693 525401342467 1165020368079 1576204027401 3495061104237 4728612082203 8931822821939 26795468465817 80386405397451