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280385401130 = 25176343260023
BaseRepresentation
bin1000001010010000100…
…01011011000100101010
3222210201112121011110022
410011020101123010222
514043212130314010
6332450212120442
726154132405032
oct4051021330452
9883645534408
10280385401130
11a8a0228190a
1246410606122
13205952536a3
14d7dc1008c2
1574606c0d55
hex414845b12a

280385401130 has 32 divisors (see below), whose sum is σ = 534467890944. Its totient is φ = 105539809536.

The previous prime is 280385401123. The next prime is 280385401133. The reversal of 280385401130 is 31104583082.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (280385401133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 948299 + ... + 1208321.

It is an arithmetic number, because the mean of its divisors is an integer number (16702121592).

Almost surely, 2280385401130 is an apocalyptic number.

280385401130 is a deficient number, since it is larger than the sum of its proper divisors (254082489814).

280385401130 is a wasteful number, since it uses less digits than its factorization.

280385401130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266390.

The product of its (nonzero) digits is 23040, while the sum is 35.

The spelling of 280385401130 in words is "two hundred eighty billion, three hundred eighty-five million, four hundred one thousand, one hundred thirty".

Divisors: 1 2 5 10 17 34 85 170 6343 12686 31715 63430 107831 215662 260023 520046 539155 1078310 1300115 2600230 4420391 8840782 22101955 44203910 1649325889 3298651778 8246629445 16493258890 28038540113 56077080226 140192700565 280385401130