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488081392040 = 2351117108760029
BaseRepresentation
bin1110001101000111110…
…10110000000110101000
31201122211020020200210002
413012203322300012220
530444042314021130
61012115502042132
750156053244234
oct7064372600650
91648736220702
10488081392040
11178aa3248980
127a715579348
1337044b13128
14198a23515c4
15ca695ddb45
hex71a3eb01a8

488081392040 has 128 divisors (see below), whose sum is σ = 1269677721600. Its totient is φ = 166887444480.

The previous prime is 488081392027. The next prime is 488081392067. The reversal of 488081392040 is 40293180884.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8100746 + ... + 8160774.

It is an arithmetic number, because the mean of its divisors is an integer number (9919357200).

Almost surely, 2488081392040 is an apocalyptic number.

488081392040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 488081392040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (634838860800).

488081392040 is an abundant number, since it is smaller than the sum of its proper divisors (781596329560).

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

488081392040 is a wasteful number, since it uses less digits than its factorization.

488081392040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61155 (or 61151 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 47.

The spelling of 488081392040 in words is "four hundred eighty-eight billion, eighty-one million, three hundred ninety-two thousand, forty".

Divisors: 1 2 4 5 8 10 11 17 20 22 34 40 44 55 68 85 88 110 136 170 187 220 340 374 440 680 748 935 1087 1496 1870 2174 3740 4348 5435 7480 8696 10870 11957 18479 21740 23914 36958 43480 47828 59785 60029 73916 92395 95656 119570 120058 147832 184790 203269 239140 240116 300145 369580 406538 478280 480232 600290 660319 739160 813076 1016345 1020493 1200580 1320638 1626152 2032690 2040986 2401160 2641276 3301595 4065380 4081972 5102465 5282552 6603190 8130760 8163944 10204930 11225423 13206380 20409860 22450846 26412760 40819720 44901692 56127115 65251523 89803384 112254230 130503046 224508460 261006092 326257615 449016920 522012184 652515230 717766753 1109275891 1305030460 1435533506 2218551782 2610060920 2871067012 3588833765 4437103564 5546379455 5742134024 7177667530 8874207128 11092758910 12202034801 14355335060 22185517820 24404069602 28710670120 44371035640 48808139204 61010174005 97616278408 122020348010 244040696020 488081392040