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203351252420 = 225311971664903
BaseRepresentation
bin1011110101100010101…
…1011101110111000100
3201102212220020221120102
42331120223131313010
511312430410034140
6233230203023232
720456143061141
oct2753053356704
9642786227512
10203351252420
11792715317a8
12334b1b0ab18
1316239707984
149bb11dd3c8
15545279ce15
hex2f58adddc4

203351252420 has 48 divisors (see below), whose sum is σ = 443050933248. Its totient is φ = 78316990080.

The previous prime is 203351252417. The next prime is 203351252431. The reversal of 203351252420 is 24252153302.

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, 710312 + ... + 954591.

It is an arithmetic number, because the mean of its divisors is an integer number (9230227776).

Almost surely, 2203351252420 is an apocalyptic number.

203351252420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203351252420 is an abundant number, since it is smaller than the sum of its proper divisors (239699680828).

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

203351252420 is a wasteful number, since it uses less digits than its factorization.

203351252420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1665140 (or 1665138 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

The spelling of 203351252420 in words is "two hundred three billion, three hundred fifty-one million, two hundred fifty-two thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 31 62 124 155 197 310 394 620 788 985 1970 3940 6107 12214 24428 30535 61070 122140 1664903 3329806 6659612 8324515 16649030 33298060 51611993 103223986 206447972 258059965 327985891 516119930 655971782 1032239860 1311943564 1639929455 3279858910 6559717820 10167562621 20335125242 40670250484 50837813105 101675626210 203351252420