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385298711 = 7253891667
BaseRepresentation
bin10110111101110…
…011000100010111
3222212000012110122
4112331303010113
51242114024321
6102122142155
712355661600
oct2675630427
9885005418
10385298711
11188544696
12a905195b
1361a94c05
1439258da7
1523c5c8ab
hex16f73117

385298711 has 24 divisors (see below), whose sum is σ = 462069360. Its totient is φ = 320191872.

The previous prime is 385298681. The next prime is 385298717. The reversal of 385298711 is 117892583.

It is not a de Polignac number, because 385298711 - 222 = 381104407 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 (385298717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 230300 + ... + 231966.

It is an arithmetic number, because the mean of its divisors is an integer number (19252890).

Almost surely, 2385298711 is an apocalyptic number.

385298711 is a deficient number, since it is larger than the sum of its proper divisors (76770649).

385298711 is a wasteful number, since it uses less digits than its factorization.

385298711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1823 (or 1816 counting only the distinct ones).

The product of its digits is 120960, while the sum is 44.

The square root of 385298711 is about 19629.0272555723. The cubic root of 385298711 is about 727.6667298524. Note that the first 3 decimals are identical.

The spelling of 385298711 in words is "three hundred eighty-five million, two hundred ninety-eight thousand, seven hundred eleven".

Divisors: 1 7 49 53 89 371 623 1667 2597 4361 4717 11669 33019 81683 88351 148363 231133 618457 1038541 4329199 7269787 7863239 55042673 385298711