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490488323520 = 26351339301949
BaseRepresentation
bin1110010001100110110…
…00011101110111000000
31201220000222022111001110
413020303120131313000
531014010002323040
61013154403003320
750302520650206
oct7106330356700
91656028274043
10490488323520
1117a018965148
127b087669540
1337339687a40
1419a4dc97076
15cb5aa83980
hex723361ddc0

490488323520 has 112 divisors (see below), whose sum is σ = 1677092810400. Its totient is φ = 120735584256.

The previous prime is 490488323513. The next prime is 490488323531. The reversal of 490488323520 is 25323884094.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 490488323520.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19638495 + ... + 19663454.

It is an arithmetic number, because the mean of its divisors is an integer number (14974042950).

Almost surely, 2490488323520 is an apocalyptic number.

490488323520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

490488323520 is an abundant number, since it is smaller than the sum of its proper divisors (1186604486880).

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

490488323520 is a wasteful number, since it uses less digits than its factorization.

490488323520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39301982 (or 39301972 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 48.

The spelling of 490488323520 in words is "four hundred ninety billion, four hundred eighty-eight million, three hundred twenty-three thousand, five hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 13 15 16 20 24 26 30 32 39 40 48 52 60 64 65 78 80 96 104 120 130 156 160 192 195 208 240 260 312 320 390 416 480 520 624 780 832 960 1040 1248 1560 2080 2496 3120 4160 6240 12480 39301949 78603898 117905847 157207796 196509745 235811694 314415592 393019490 471623388 510925337 589529235 628831184 786038980 943246776 1021850674 1179058470 1257662368 1532776011 1572077960 1886493552 2043701348 2358116940 2515324736 2554626685 3065552022 3144155920 3772987104 4087402696 4716233880 5109253370 6131104044 6288311840 7545974208 7663880055 8174805392 9432467760 10218506740 12262208088 12576623680 15327760110 16349610784 18864935520 20437013480 24524416176 30655520220 32699221568 37729871040 40874026960 49048832352 61311040440 81748053920 98097664704 122622080880 163496107840 245244161760 490488323520