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830706549 = 31093477321
BaseRepresentation
bin110001100000111…
…001001101110101
32010220010021011020
4301200321031311
53200130102144
6214232531353
726404613661
oct6140711565
92126107136
10830706549
11396a04142
121b2250b59
1310314464a
147c47d8a1
154cde0419
hex31839375

830706549 has 16 divisors (see below), whose sum is σ = 1121144640. Its totient is φ = 547067520.

The previous prime is 830706533. The next prime is 830706557. The reversal of 830706549 is 945607038.

It is a happy number.

830706549 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 830706549 - 24 = 830706533 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 830706549.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (830706449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109809 + ... + 117129.

It is an arithmetic number, because the mean of its divisors is an integer number (70071540).

Almost surely, 2830706549 is an apocalyptic number.

It is an amenable number.

830706549 is a deficient number, since it is larger than the sum of its proper divisors (290438091).

830706549 is a wasteful number, since it uses less digits than its factorization.

830706549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7780.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 830706549 is about 28821.9803101730. The cubic root of 830706549 is about 940.0462286756.

The spelling of 830706549 in words is "eight hundred thirty million, seven hundred six thousand, five hundred forty-nine".

Divisors: 1 3 109 327 347 1041 7321 21963 37823 113469 797989 2393967 2540387 7621161 276902183 830706549