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420415103131244 = 221361251528045577
BaseRepresentation
bin101111110010111011000010…
…0111000010101111001101100
32001010120021212101111112221122
41133211312010320111321230
5420101040112400144434
64050052010533520112
7154360663114240664
oct13745660470257154
92033507771445848
10420415103131244
11111a59053578081
123b19b31b4a3038
1315077c88187970
1475b62b18571a4
153390e65794c2e
hex17e5d84e15e6c

420415103131244 has 48 divisors (see below), whose sum is σ = 808518042845856. Its totient is φ = 190096407360000.

The previous prime is 420415103131237. The next prime is 420415103131249. The reversal of 420415103131244 is 442131301514024.

It is not an unprimeable number, because it can be changed into a prime (420415103131249) 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, 263226617 + ... + 264818960.

It is an arithmetic number, because the mean of its divisors is an integer number (16844125892622).

Almost surely, 2420415103131244 is an apocalyptic number.

It is an amenable number.

420415103131244 is a deficient number, since it is larger than the sum of its proper divisors (388102939714612).

420415103131244 is a wasteful number, since it uses less digits than its factorization.

420415103131244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528045906 (or 528045904 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 35.

Adding to 420415103131244 its reverse (442131301514024), we get a palindrome (862546404645268).

The spelling of 420415103131244 in words is "four hundred twenty trillion, four hundred fifteen billion, one hundred three million, one hundred thirty-one thousand, two hundred forty-four".

Divisors: 1 2 4 13 26 52 61 122 244 251 502 793 1004 1586 3172 3263 6526 13052 15311 30622 61244 199043 398086 796172 528045577 1056091154 2112182308 6864592501 13729185002 27458370004 32210780197 64421560394 128843120788 132539439827 265078879654 418740142561 530157759308 837480285122 1674960570244 1723012717751 3446025435502 6892050871004 8084905829447 16169811658894 32339623317788 105103775782811 210207551565622 420415103131244