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83951031472 = 2471168142071
BaseRepresentation
bin100111000101111011…
…1110001010010110000
322000200200200021020221
41032023313301102300
52333412431001342
6102322213542424
76031245664540
oct1161367612260
9260620607227
1083951031472
1132670194550
121432b044a14
137bbb86c769
1440c57c3320
1522b52bea67
hex138bdf14b0

83951031472 has 40 divisors (see below), whose sum is σ = 202790806272. Its totient is φ = 32708193600.

The previous prime is 83951031469. The next prime is 83951031497. The reversal of 83951031472 is 27413015938.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34069804 + ... + 34072267.

Almost surely, 283951031472 is an apocalyptic number.

It is an amenable number.

83951031472 is an abundant number, since it is smaller than the sum of its proper divisors (118839774800).

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

83951031472 is a wasteful number, since it uses less digits than its factorization.

83951031472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68142097 (or 68142091 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 43.

The spelling of 83951031472 in words is "eighty-three billion, nine hundred fifty-one million, thirty-one thousand, four hundred seventy-two".

Divisors: 1 2 4 7 8 11 14 16 22 28 44 56 77 88 112 154 176 308 616 1232 68142071 136284142 272568284 476994497 545136568 749562781 953988994 1090273136 1499125562 1907977988 2998251124 3815955976 5246939467 5996502248 7631911952 10493878934 11993004496 20987757868 41975515736 83951031472