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42140424210040 = 23513125416461947
BaseRepresentation
bin10011001010011100101010…
…00001000000011001111000
312112012120210121200211210201
421211032111001000121320
521010412042044210130
6225343013231251544
711606354665455052
oct1145162501003170
9175176717624721
1042140424210040
1112477720960302
12488711a979bb4
131a68a9555ab80
14a59870a608d2
154d1280cb2bca
hex265395040678

42140424210040 has 64 divisors (see below), whose sum is σ = 102117647288160. Its totient is φ = 15558298145280.

The previous prime is 42140424209999. The next prime is 42140424210139. The reversal of 42140424210040 is 4001242404124.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 42140424209990 and 42140424210008.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3290347 + ... + 9752293.

Almost surely, 242140424210040 is an apocalyptic number.

42140424210040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42140424210040 is an abundant number, since it is smaller than the sum of its proper divisors (59977223078120).

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

42140424210040 is a wasteful number, since it uses less digits than its factorization.

42140424210040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6474512 (or 6474508 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 28.

Adding to 42140424210040 its reverse (4001242404124), we get a palindrome (46141666614164).

The spelling of 42140424210040 in words is "forty-two trillion, one hundred forty billion, four hundred twenty-four million, two hundred ten thousand, forty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 65 104 130 260 520 12541 25082 50164 62705 100328 125410 163033 250820 326066 501640 652132 815165 1304264 1630330 3260660 6461947 6521320 12923894 25847788 32309735 51695576 64619470 84005311 129238940 168010622 258477880 336021244 420026555 672042488 840053110 1680106220 3360212440 81039277327 162078554654 324157109308 405196386635 648314218616 810392773270 1053510605251 1620785546540 2107021210502 3241571093080 4214042421004 5267553026255 8428084842008 10535106052510 21070212105020 42140424210040