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420542141404400 = 24521051355353511
BaseRepresentation
bin101111110011110110001100…
…0111100111001010011110000
32001011000102202220102111010122
41133213230120330321103300
5420110130301144420100
64050230220452545412
7154403111205606131
oct13747543074712360
92034012686374118
10420542141404400
11111aa7a14347a74
123b1bba74322268
1315086c525887b2
1475bc4c383dc88
1533943ed5c4985
hex17e7b18f394f0

420542141404400 has 30 divisors (see below), whose sum is σ = 1010352494725032. Its totient is φ = 168216856561600.

The previous prime is 420542141404391. The next prime is 420542141404471. The reversal of 420542141404400 is 4404141245024.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 525677676356 + ... + 525677677155.

Almost surely, 2420542141404400 is an apocalyptic number.

420542141404400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

420542141404400 is an abundant number, since it is smaller than the sum of its proper divisors (589810353320632).

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

420542141404400 is a wasteful number, since it uses less digits than its factorization.

420542141404400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1051355353529 (or 1051355353518 counting only the distinct ones).

The product of its (nonzero) digits is 81920, while the sum is 35.

Adding to 420542141404400 its reverse (4404141245024), we get a palindrome (424946282649424).

The spelling of 420542141404400 in words is "four hundred twenty trillion, five hundred forty-two billion, one hundred forty-one million, four hundred four thousand, four hundred".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 200 400 1051355353511 2102710707022 4205421414044 5256776767555 8410842828088 10513553535110 16821685656176 21027107070220 26283883837775 42054214140440 52567767675550 84108428280880 105135535351100 210271070702200 420542141404400