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42808938810 = 23511314184647
BaseRepresentation
bin100111110111100111…
…001001000100111010
311002111102120102011020
4213313213021010322
51200133042020220
631355520043310
73043562655531
oct476747110472
9132442512136
1042808938810
1117178591380
128368763536
134062cbc331
14210167b318
1511a83da040
hex9f79c913a

42808938810 has 64 divisors (see below), whose sum is σ = 115697147904. Its totient is φ = 10043150400.

The previous prime is 42808938751. The next prime is 42808938811. The reversal of 42808938810 is 1883980824.

It is a happy number.

It is a super-2 number, since 2×428089388102 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42808938811) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2082094 + ... + 2102553.

It is an arithmetic number, because the mean of its divisors is an integer number (1807767936).

Almost surely, 242808938810 is an apocalyptic number.

42808938810 is an abundant number, since it is smaller than the sum of its proper divisors (72888209094).

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

42808938810 is a wasteful number, since it uses less digits than its factorization.

42808938810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4184699.

The product of its (nonzero) digits is 884736, while the sum is 51.

The spelling of 42808938810 in words is "forty-two billion, eight hundred eight million, nine hundred thirty-eight thousand, eight hundred ten".

Divisors: 1 2 3 5 6 10 11 15 22 30 31 33 55 62 66 93 110 155 165 186 310 330 341 465 682 930 1023 1705 2046 3410 5115 10230 4184647 8369294 12553941 20923235 25107882 41846470 46031117 62769705 92062234 125539410 129724057 138093351 230155585 259448114 276186702 389172171 460311170 648620285 690466755 778344342 1297240570 1380933510 1426964627 1945860855 2853929254 3891721710 4280893881 7134823135 8561787762 14269646270 21404469405 42808938810