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428106068240 = 24517159311867
BaseRepresentation
bin1100011101011010001…
…11000011000100010000
31111221000110002120102012
412032231013003010100
524003230123140430
6524400314442052
742633603352634
oct6165507030420
91457013076365
10428106068240
11155616795474
126ab77a33328
13314a7515956
1416a12c82dc4
15b209112695
hex63ad1c3110

428106068240 has 40 divisors (see below), whose sum is σ = 995407807680. Its totient is φ = 171231898496.

The previous prime is 428106068227. The next prime is 428106068267. The reversal of 428106068240 is 42860601824.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1216787 + ... + 1528653.

It is an arithmetic number, because the mean of its divisors is an integer number (24885195192).

Almost surely, 2428106068240 is an apocalyptic number.

428106068240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

428106068240 is an abundant number, since it is smaller than the sum of its proper divisors (567301739440).

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

428106068240 is a wasteful number, since it uses less digits than its factorization.

428106068240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329039 (or 329033 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 41.

The spelling of 428106068240 in words is "four hundred twenty-eight billion, one hundred six million, sixty-eight thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 20 40 80 17159 34318 68636 85795 137272 171590 274544 311867 343180 623734 686360 1247468 1372720 1559335 2494936 3118670 4989872 6237340 12474680 24949360 5351325853 10702651706 21405303412 26756629265 42810606824 53513258530 85621213648 107026517060 214053034120 428106068240