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488566639520 = 25510728537771
BaseRepresentation
bin1110001110000001101…
…01110100101110100000
31201201002001022211011222
413013000311310232200
531001041024431040
61012235554354212
750204064626021
oct7070065645640
91651061284158
10488566639520
11179222149553
127a82bb8b968
13370c150140b
141990a986c48
15ca96ee0bb5
hex71c0d74ba0

488566639520 has 48 divisors (see below), whose sum is σ = 1165026004128. Its totient is φ = 193600231680.

The previous prime is 488566639499. The next prime is 488566639543. The reversal of 488566639520 is 25936665884.

It is a super-2 number, since 2×4885666395202 (a number of 24 digits) contains 22 as substring.

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, 14251766 + ... + 14286005.

It is an arithmetic number, because the mean of its divisors is an integer number (24271375086).

Almost surely, 2488566639520 is an apocalyptic number.

488566639520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

488566639520 is an abundant number, since it is smaller than the sum of its proper divisors (676459364608).

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

488566639520 is a wasteful number, since it uses less digits than its factorization.

488566639520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28537893 (or 28537885 counting only the distinct ones).

The product of its (nonzero) digits is 74649600, while the sum is 62.

The spelling of 488566639520 in words is "four hundred eighty-eight billion, five hundred sixty-six million, six hundred thirty-nine thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 107 160 214 428 535 856 1070 1712 2140 3424 4280 8560 17120 28537771 57075542 114151084 142688855 228302168 285377710 456604336 570755420 913208672 1141510840 2283021680 3053541497 4566043360 6107082994 12214165988 15267707485 24428331976 30535414970 48856663952 61070829940 97713327904 122141659880 244283319760 488566639520