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83353309992 = 23321157684861
BaseRepresentation
bin100110110100000111…
…1101001001100101000
321222011000221212112100
41031220033221030220
52331201421404432
6102143022413400
76010400305401
oct1155017511450
9258130855470
1083353309992
1132393852557
12141a2a31260
137b24a91004
14406a2709a8
15227caa207c
hex13683e9328

83353309992 has 24 divisors (see below), whose sum is σ = 225748548090. Its totient is φ = 27784436640.

The previous prime is 83353309973. The next prime is 83353309993. The reversal of 83353309992 is 29990335338.

It can be written as a sum of positive squares in only one way, i.e., 52529889636 + 30823420356 = 229194^2 + 175566^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (83353309993) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 578842359 + ... + 578842502.

Almost surely, 283353309992 is an apocalyptic number.

It is an amenable number.

83353309992 is an abundant number, since it is smaller than the sum of its proper divisors (142395238098).

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

83353309992 is a wasteful number, since it uses less digits than its factorization.

83353309992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1157684873 (or 1157684866 counting only the distinct ones).

The product of its (nonzero) digits is 4723920, while the sum is 54.

The spelling of 83353309992 in words is "eighty-three billion, three hundred fifty-three million, three hundred nine thousand, nine hundred ninety-two".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 1157684861 2315369722 3473054583 4630739444 6946109166 9261478888 10419163749 13892218332 20838327498 27784436664 41676654996 83353309992