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297132550 = 2521113291433
BaseRepresentation
bin10001101101011…
…110001000000110
3202201002220020021
4101231132020012
51102031220200
645252325354
710235404441
oct2155361006
9681086207
10297132550
111427a60a0
128361385a
13497358a0
142b668658
151b14441a
hex11b5e206

297132550 has 96 divisors (see below), whose sum is σ = 672144480. Its totient is φ = 96230400.

The previous prime is 297132541. The next prime is 297132553. The reversal of 297132550 is 55231792.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (297132553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 206634 + ... + 208066.

It is an arithmetic number, because the mean of its divisors is an integer number (7001505).

Almost surely, 2297132550 is an apocalyptic number.

297132550 is an abundant number, since it is smaller than the sum of its proper divisors (375011930).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

297132550 is a wasteful number, since it uses less digits than its factorization.

297132550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1498 (or 1493 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 297132550 is about 17237.5331761827. The cubic root of 297132550 is about 667.2932678164.

The spelling of 297132550 in words is "two hundred ninety-seven million, one hundred thirty-two thousand, five hundred fifty".

Divisors: 1 2 5 10 11 13 22 25 26 29 50 55 58 65 110 130 143 145 275 286 290 319 325 377 550 638 650 715 725 754 1430 1433 1450 1595 1885 2866 3190 3575 3770 4147 7150 7165 7975 8294 9425 14330 15763 15950 18629 18850 20735 31526 35825 37258 41470 41557 71650 78815 83114 93145 103675 157630 186290 204919 207350 207785 394075 409838 415570 457127 465725 540241 788150 914254 931450 1024595 1038925 1080482 2049190 2077850 2285635 2701205 4571270 5122975 5402410 5942651 10245950 11428175 11885302 13506025 22856350 27012050 29713255 59426510 148566275 297132550