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497988468849950 = 252133169073578119
BaseRepresentation
bin111000100111010101111100…
…1110010011011110100011110
32102022020020021121211200022222
41301032223321302123310132
51010233020341011144300
64523044424440105342
7206615323331331341
oct16116537162336436
92368206247750288
10497988468849950
111347467a6151311
1247a29602765252
13184b415a164610
148ad8ab0356458
153c88c52413785
hex1c4eaf9c9bd1e

497988468849950 has 96 divisors (see below), whose sum is σ = 1029836292925440. Its totient is φ = 177915476937600.

The previous prime is 497988468849929. The next prime is 497988468849953. The reversal of 497988468849950 is 59948864889794.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (497988468849953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 137386991 + ... + 140965109.

It is an arithmetic number, because the mean of its divisors is an integer number (10727461384640).

Almost surely, 2497988468849950 is an apocalyptic number.

497988468849950 is an abundant number, since it is smaller than the sum of its proper divisors (531847824075490).

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

497988468849950 is a wasteful number, since it uses less digits than its factorization.

497988468849950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3585082 (or 3585077 counting only the distinct ones).

The product of its (nonzero) digits is 361184624640, while the sum is 98.

The spelling of 497988468849950 in words is "four hundred ninety-seven trillion, nine hundred eighty-eight billion, four hundred sixty-eight million, eight hundred forty-nine thousand, nine hundred fifty".

Divisors: 1 2 5 10 13 25 26 31 50 62 65 130 155 310 325 403 650 775 806 1550 2015 4030 6907 10075 13814 20150 34535 69070 89791 172675 179582 214117 345350 428234 448955 897910 1070585 2141170 2244775 2783521 3578119 4489550 5352925 5567042 7156238 10705850 13917605 17890595 27835210 35781190 46515547 69588025 89452975 93031094 110921689 139176050 178905950 221843378 232577735 465155470 554608445 1109216890 1162888675 1441981957 2325777350 2773042225 2883963914 5546084450 7209909785 14419819570 24714067933 36049548925 49428135866 72099097850 123570339665 247140679330 321282883129 617851698325 642565766258 766136105923 1235703396650 1532272211846 1606414415645 3212828831290 3830680529615 7661361059230 8032072078225 9959769376999 16064144156450 19153402648075 19919538753998 38306805296150 49798846884995 99597693769990 248994234424975 497988468849950