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489069880 = 235131959839
BaseRepresentation
bin11101001001101…
…001110100111000
31021002021022202021
4131021221310320
52000200214010
6120310244224
715056011465
oct3511516470
91232238667
10489069880
11231081492
12117956674
137a429080
1448d4c66c
152ce098da
hex1d269d38

489069880 has 128 divisors (see below), whose sum is σ = 1270080000. Its totient is φ = 167975424.

The previous prime is 489069877. The next prime is 489069883. The reversal of 489069880 is 88960984.

It is an interprime number because it is at equal distance from previous prime (489069877) and next prime (489069883).

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489069883) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 582501 + ... + 583339.

It is an arithmetic number, because the mean of its divisors is an integer number (9922500).

Almost surely, 2489069880 is an apocalyptic number.

489069880 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 489069880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (635040000).

489069880 is an abundant number, since it is smaller than the sum of its proper divisors (781010120).

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

489069880 is a wasteful number, since it uses less digits than its factorization.

489069880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 941 (or 937 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 52.

The square root of 489069880 is about 22114.9243724685. The cubic root of 489069880 is about 787.8743690739.

The spelling of 489069880 in words is "four hundred eighty-nine million, sixty-nine thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 13 19 20 26 38 40 52 59 65 76 95 104 118 130 152 190 236 247 260 295 380 472 494 520 590 760 767 839 988 1121 1180 1235 1534 1678 1976 2242 2360 2470 3068 3356 3835 4195 4484 4940 5605 6136 6712 7670 8390 8968 9880 10907 11210 14573 15340 15941 16780 21814 22420 29146 30680 31882 33560 43628 44840 49501 54535 58292 63764 72865 79705 87256 99002 109070 116584 127528 145730 159410 198004 207233 218140 247505 291460 318820 396008 414466 436280 495010 582920 637640 643513 828932 940519 990020 1036165 1287026 1657864 1881038 1980040 2072330 2574052 3217565 3762076 4144660 4702595 5148104 6435130 7524152 8289320 9405190 12226747 12870260 18810380 24453494 25740520 37620760 48906988 61133735 97813976 122267470 244534940 489069880