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83082909 = 37132711123
BaseRepresentation
bin1001111001110…
…11111010011101
312210100001022210
410330323322131
5132232123114
612124431033
72026123140
oct474737235
9183301283
1083082909
1142997468
12239a8479
131429c6b0
14b06a057
157462259
hex4f3be9d

83082909 has 32 divisors (see below), whose sum is σ = 136966144. Its totient is φ = 43623360.

The previous prime is 83082889. The next prime is 83082913. The reversal of 83082909 is 90928038.

It is not a de Polignac number, because 83082909 - 211 = 83080861 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83082919) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73422 + ... + 74544.

It is an arithmetic number, because the mean of its divisors is an integer number (4280192).

Almost surely, 283082909 is an apocalyptic number.

It is an amenable number.

83082909 is a deficient number, since it is larger than the sum of its proper divisors (53883235).

83082909 is a wasteful number, since it uses less digits than its factorization.

83082909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1417.

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 83082909 is about 9114.9826659188. The cubic root of 83082909 is about 436.3522617497.

The spelling of 83082909 in words is "eighty-three million, eighty-two thousand, nine hundred nine".

Divisors: 1 3 7 13 21 39 91 271 273 813 1123 1897 3369 3523 5691 7861 10569 14599 23583 24661 43797 73983 102193 304333 306579 912999 2130331 3956329 6390993 11868987 27694303 83082909