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83897948375 = 535911375993
BaseRepresentation
bin100111000100010110…
…1010001100011010111
322000112222210100221022
41032020231101203113
52333310333322000
6102313040111355
76030032536403
oct1161055214327
9260488710838
1083897948375
113264322841a
121431530555b
137bb0874c47
1440bc726103
1522b07d6585
hex1388b518d7

83897948375 has 16 divisors (see below), whose sum is σ = 106479303840. Its totient is φ = 65980753600.

The previous prime is 83897948333. The next prime is 83897948389. The reversal of 83897948375 is 57384979838.

It is not a de Polignac number, because 83897948375 - 28 = 83897948119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 83897948299 and 83897948308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5680622 + ... + 5695371.

It is an arithmetic number, because the mean of its divisors is an integer number (6654956490).

Almost surely, 283897948375 is an apocalyptic number.

83897948375 is a deficient number, since it is larger than the sum of its proper divisors (22581355465).

83897948375 is a wasteful number, since it uses less digits than its factorization.

83897948375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11376067 (or 11376057 counting only the distinct ones).

The product of its digits is 365783040, while the sum is 71.

The spelling of 83897948375 in words is "eighty-three billion, eight hundred ninety-seven million, nine hundred forty-eight thousand, three hundred seventy-five".

Divisors: 1 5 25 59 125 295 1475 7375 11375993 56879965 284399825 671183587 1421999125 3355917935 16779589675 83897948375