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83902327487 = 1119401446543
BaseRepresentation
bin100111000100011110…
…1111110101010111111
322000120022000211221122
41032020331332222333
52333312443434422
6102313314021155
76030115005446
oct1161075765277
9260508024848
1083902327487
1132645749520
12143168777bb
137bb1749234
1440bd145d5d
1522b0d9dd42
hex1388f7eabf

83902327487 has 8 divisors (see below), whose sum is σ = 96347170560. Its totient is φ = 72260377560.

The previous prime is 83902327429. The next prime is 83902327489. The reversal of 83902327487 is 78472320938.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 83902327487 - 28 = 83902327231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83902327489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 200723063 + ... + 200723480.

It is an arithmetic number, because the mean of its divisors is an integer number (12043396320).

Almost surely, 283902327487 is an apocalyptic number.

83902327487 is a deficient number, since it is larger than the sum of its proper divisors (12444843073).

83902327487 is a wasteful number, since it uses less digits than its factorization.

83902327487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401446573.

The product of its (nonzero) digits is 4064256, while the sum is 53.

The spelling of 83902327487 in words is "eighty-three billion, nine hundred two million, three hundred twenty-seven thousand, four hundred eighty-seven".

Divisors: 1 11 19 209 401446543 4415911973 7627484317 83902327487