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83949351127 = 268931219543
BaseRepresentation
bin100111000101111000…
…1010111000011010111
322000200120111220020221
41032023301113003113
52333412013214002
6102322113535211
76031225465555
oct1161361270327
9260616456227
1083949351127
113266a247034
121432a574507
137bbb401985
1440c54a6bd5
1522b508bc37
hex138bc570d7

83949351127 has 4 divisors (see below), whose sum is σ = 83980573360. Its totient is φ = 83918128896.

The previous prime is 83949351121. The next prime is 83949351139. The reversal of 83949351127 is 72115394938.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 83949351127 - 227 = 83815133399 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 (83949351121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15607083 + ... + 15612460.

It is an arithmetic number, because the mean of its divisors is an integer number (20995143340).

Almost surely, 283949351127 is an apocalyptic number.

83949351127 is a deficient number, since it is larger than the sum of its proper divisors (31222233).

83949351127 is a wasteful number, since it uses less digits than its factorization.

83949351127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31222232.

The product of its digits is 1632960, while the sum is 52.

The spelling of 83949351127 in words is "eighty-three billion, nine hundred forty-nine million, three hundred fifty-one thousand, one hundred twenty-seven".

Divisors: 1 2689 31219543 83949351127