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285420026348 = 22531346320879
BaseRepresentation
bin1000010011101000101…
…10111111100111101100
31000021201102010121212222
410021310112333213230
514134020011320343
6335041541414512
726422655123462
oct4116426774754
91007642117788
10285420026348
111000561892a6
124739670a438
1320bb8316572
14db58a16832
1576576b6a68
hex42745bf9ec

285420026348 has 12 divisors (see below), whose sum is σ = 508909292640. Its totient is φ = 140017371312.

The previous prime is 285420026347. The next prime is 285420026357. The reversal of 285420026348 is 843620024582.

It is a junction number, because it is equal to n+sod(n) for n = 285420026299 and 285420026308.

It is not an unprimeable number, because it can be changed into a prime (285420026347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 673160228 + ... + 673160651.

It is an arithmetic number, because the mean of its divisors is an integer number (42409107720).

Almost surely, 2285420026348 is an apocalyptic number.

It is an amenable number.

285420026348 is a deficient number, since it is larger than the sum of its proper divisors (223489266292).

285420026348 is a wasteful number, since it uses less digits than its factorization.

285420026348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1346320936 (or 1346320934 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 44.

The spelling of 285420026348 in words is "two hundred eighty-five billion, four hundred twenty million, twenty-six thousand, three hundred forty-eight".

Divisors: 1 2 4 53 106 212 1346320879 2692641758 5385283516 71355006587 142710013174 285420026348