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420288888260 = 225173074026527
BaseRepresentation
bin1100001110110110010…
…10110111110111000100
31111011211122200200102202
412013123022313313010
523341222423411020
6521024505254032
742236102414513
oct6073312676704
91434748620382
10420288888260
1115227513644a
1269555a94318
133082cb23177
14164b09a867a
15adecbcae75
hex61db2b7dc4

420288888260 has 48 divisors (see below), whose sum is σ = 937568991744. Its totient is φ = 157710970368.

The previous prime is 420288888233. The next prime is 420288888281. The reversal of 420288888260 is 62888882024.

It is a junction number, because it is equal to n+sod(n) for n = 420288888196 and 420288888205.

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, 1908884 + ... + 2117643.

It is an arithmetic number, because the mean of its divisors is an integer number (19532687328).

Almost surely, 2420288888260 is an apocalyptic number.

It is an amenable number.

420288888260 is an abundant number, since it is smaller than the sum of its proper divisors (517280103484).

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

420288888260 is a wasteful number, since it uses less digits than its factorization.

420288888260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4026860 (or 4026858 counting only the distinct ones).

The product of its (nonzero) digits is 6291456, while the sum is 56.

The spelling of 420288888260 in words is "four hundred twenty billion, two hundred eighty-eight million, eight hundred eighty-eight thousand, two hundred sixty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 307 340 614 1228 1535 3070 5219 6140 10438 20876 26095 52190 104380 4026527 8053054 16106108 20132635 40265270 68450959 80530540 136901918 273803836 342254795 684509590 1236143789 1369019180 2472287578 4944575156 6180718945 12361437890 21014444413 24722875780 42028888826 84057777652 105072222065 210144444130 420288888260