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307982277990 = 23255958000429
BaseRepresentation
bin1000111101101010010…
…11001001110101100110
31002102221210222202121200
410132311023021311212
520021221430343430
6353252441023330
731152042112002
oct4366513116546
91072853882550
10307982277990
11109683a6a962
124b832784b46
13230727a841a
1410c99315702
158028358460
hex47b52c9d66

307982277990 has 48 divisors (see below), whose sum is σ = 814326037200. Its totient is φ = 80736595776.

The previous prime is 307982277961. The next prime is 307982277997. The reversal of 307982277990 is 99772289703.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (307982277997) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28994905 + ... + 29005524.

It is an arithmetic number, because the mean of its divisors is an integer number (16965125775).

Almost surely, 2307982277990 is an apocalyptic number.

307982277990 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

307982277990 is an abundant number, since it is smaller than the sum of its proper divisors (506343759210).

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

307982277990 is a wasteful number, since it uses less digits than its factorization.

307982277990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58000501 (or 58000498 counting only the distinct ones).

The product of its (nonzero) digits is 24004512, while the sum is 63.

The spelling of 307982277990 in words is "three hundred seven billion, nine hundred eighty-two million, two hundred seventy-seven thousand, nine hundred ninety".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 59 90 118 177 295 354 531 590 885 1062 1770 2655 5310 58000429 116000858 174001287 290002145 348002574 522003861 580004290 870006435 1044007722 1740012870 2610019305 3422025311 5220038610 6844050622 10266075933 17110126555 20532151866 30798227799 34220253110 51330379665 61596455598 102660759330 153991138995 307982277990