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83079505 = 5144711483
BaseRepresentation
bin1001111001110…
…11000101010001
312210022212122201
410330323011101
5132232021010
612124403201
72026110205
oct474730521
9183285581
1083079505
1142994953
12239a6501
131429ac92
14b068b05
15746123a
hex4f3b151

83079505 has 8 divisors (see below), whose sum is σ = 99772992. Its totient is φ = 66411888.

The previous prime is 83079497. The next prime is 83079511. The reversal of 83079505 is 50597038.

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 83079505 - 23 = 83079497 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1494 + ... + 12976.

It is an arithmetic number, because the mean of its divisors is an integer number (12471624).

Almost surely, 283079505 is an apocalyptic number.

It is an amenable number.

83079505 is a deficient number, since it is larger than the sum of its proper divisors (16693487).

83079505 is a wasteful number, since it uses less digits than its factorization.

83079505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12935.

The product of its (nonzero) digits is 37800, while the sum is 37.

The square root of 83079505 is about 9114.7959384728. The cubic root of 83079505 is about 436.3463023878.

The spelling of 83079505 in words is "eighty-three million, seventy-nine thousand, five hundred five".

Divisors: 1 5 1447 7235 11483 57415 16615901 83079505