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72843842752 = 261573172353
BaseRepresentation
bin100001111010111010…
…1001101010011000000
320222000121112121201221
41003311311031103000
52143141010432002
653244120204424
75156065306252
oct1036565152300
9228017477657
1072843842752
11289904a523a
121214b309714
136b3b685545
1437505adcd2
151d6510ac37
hex10f5d4d4c0

72843842752 has 28 divisors (see below), whose sum is σ = 144560687256. Its totient is φ = 36419102720.

The previous prime is 72843842723. The next prime is 72843842779. The reversal of 72843842752 is 25724834827.

It is a self number, because there is not a number n which added to its sum of digits gives 72843842752.

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 3 ways as a sum of consecutive naturals, for example, 970608 + ... + 1042960.

Almost surely, 272843842752 is an apocalyptic number.

It is an amenable number.

72843842752 is a deficient number, since it is larger than the sum of its proper divisors (71716844504).

72843842752 is a wasteful number, since it uses less digits than its factorization.

72843842752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88096 (or 88086 counting only the distinct ones).

The product of its digits is 6021120, while the sum is 52.

The spelling of 72843842752 in words is "seventy-two billion, eight hundred forty-three million, eight hundred forty-two thousand, seven hundred fifty-two".

Divisors: 1 2 4 8 16 32 64 15731 31462 62924 72353 125848 144706 251696 289412 503392 578824 1006784 1157648 2315296 4630592 1138185043 2276370086 4552740172 9105480344 18210960688 36421921376 72843842752