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488640866886042 = 23136264626498539
BaseRepresentation
bin110111100011010101001000…
…1010010110010000110011010
32101002010121111011121111201020
41233012222101102302012122
51003021342443410323132
64451130303145103310
7204632065126531503
oct15706522122620632
92332117434544636
10488640866886042
11131772478574952
1246979a59787b36
1317c868364850a0
1488944b64a9baa
153b75a0c4bc52c
hex1bc6a914b219a

488640866886042 has 16 divisors (see below), whose sum is σ = 1052457251754720. Its totient is φ = 150351035964912.

The previous prime is 488640866886041. The next prime is 488640866886121. The reversal of 488640866886042 is 240688668046884.

It is a super-2 number, since 2×4886408668860422 (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (78), and also a Moran number because the ratio is a prime number: 6264626498539 = 488640866886042 / (4 + 8 + 8 + 6 + 4 + 0 + 8 + 6 + 6 + 8 + 8 + 6 + 0 + 4 + 2).

It is not an unprimeable number, because it can be changed into a prime (488640866886041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3132313249192 + ... + 3132313249347.

It is an arithmetic number, because the mean of its divisors is an integer number (65778578234670).

Almost surely, 2488640866886042 is an apocalyptic number.

488640866886042 is an abundant number, since it is smaller than the sum of its proper divisors (563816384868678).

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

488640866886042 is a wasteful number, since it uses less digits than its factorization.

488640866886042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6264626498557.

The product of its (nonzero) digits is 5435817984, while the sum is 78.

The spelling of 488640866886042 in words is "four hundred eighty-eight trillion, six hundred forty billion, eight hundred sixty-six million, eight hundred eighty-six thousand, forty-two".

Divisors: 1 2 3 6 13 26 39 78 6264626498539 12529252997078 18793879495617 37587758991234 81440144481007 162880288962014 244320433443021 488640866886042