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51342554420982 = 2331141251418963
BaseRepresentation
bin10111010110010000111101…
…01101111101011011110110
320201210022002220011021201000
423223020132231331123312
523212144022412432412
6301110235513544130
713546243234622016
oct1353103655753366
9221708086137630
1051342554420982
11153a5289522640
125912645715046
132285774b74876
14c96dc86d9c46
155e080e9474dc
hex2eb21eb7d6f6

51342554420982 has 96 divisors (see below), whose sum is σ = 127576619959680. Its totient is φ = 15178877582400.

The previous prime is 51342554420981. The next prime is 51342554421061. The reversal of 51342554420982 is 28902445524315.

51342554420982 is a `hidden beast` number, since 5 + 1 + 3 + 4 + 2 + 5 + 544 + 2 + 0 + 98 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51342554420981) 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, 24710968 + ... + 26707995.

It is an arithmetic number, because the mean of its divisors is an integer number (1328923124580).

Almost surely, 251342554420982 is an apocalyptic number.

51342554420982 is an abundant number, since it is smaller than the sum of its proper divisors (76234065538698).

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

51342554420982 is a wasteful number, since it uses less digits than its factorization.

51342554420982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51419067 (or 51419020 counting only the distinct ones).

The product of its (nonzero) digits is 13824000, while the sum is 54.

The spelling of 51342554420982 in words is "fifty-one trillion, three hundred forty-two billion, five hundred fifty-four million, four hundred twenty thousand, nine hundred eighty-two".

Divisors: 1 2 3 6 9 11 18 22 27 33 41 54 66 82 99 123 198 246 297 369 451 594 738 902 1107 1353 1681 2214 2706 3362 4059 5043 8118 10086 12177 15129 18491 24354 30258 36982 45387 55473 90774 110946 166419 332838 499257 998514 51418963 102837926 154256889 308513778 462770667 565608593 925541334 1131217186 1388312001 1696825779 2108177483 2776624002 3393651558 4216354966 5090477337 6324532449 10180954674 12649064898 15271432011 18973597347 23189952313 30542864022 37947194694 46379904626 56920792041 69569856939 86435276803 113841584082 139139713878 172870553606 208709570817 259305830409 417419141634 518611660818 626128712451 777917491227 950788044833 1252257424902 1555834982454 1901576089666 2333752473681 2852364134499 4667504947362 5704728268998 8557092403497 17114184806994 25671277210491 51342554420982