Search a number
-
+
490794120 = 233351313469
BaseRepresentation
bin11101010000001…
…110110010001000
31021012111220222000
4131100032302020
52001120402440
6120411231000
715106452435
oct3520166210
91235456860
10490794120
11232049983
12118448460
137a8b0b2b
144927ab8c
152d14a730
hex1d40ec88

490794120 has 128 divisors (see below), whose sum is σ = 1648944000. Its totient is φ = 129841920.

The previous prime is 490794107. The next prime is 490794121. The reversal of 490794120 is 21497094.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (490794121) 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, 139746 + ... + 143214.

It is an arithmetic number, because the mean of its divisors is an integer number (12882375).

Almost surely, 2490794120 is an apocalyptic number.

490794120 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 490794120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (824472000).

490794120 is an abundant number, since it is smaller than the sum of its proper divisors (1158149880).

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

490794120 is a wasteful number, since it uses less digits than its factorization.

490794120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3620 (or 3610 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 490794120 is about 22153.8737019059. The cubic root of 490794120 is about 788.7991797599.

The spelling of 490794120 in words is "four hundred ninety million, seven hundred ninety-four thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 27 30 36 40 45 54 60 72 90 108 120 131 135 180 216 262 270 360 393 524 540 655 786 1048 1080 1179 1310 1572 1965 2358 2620 3144 3469 3537 3930 4716 5240 5895 6938 7074 7860 9432 10407 11790 13876 14148 15720 17345 17685 20814 23580 27752 28296 31221 34690 35370 41628 47160 52035 62442 69380 70740 83256 93663 104070 124884 138760 141480 156105 187326 208140 249768 312210 374652 416280 454439 468315 624420 749304 908878 936630 1248840 1363317 1817756 1873260 2272195 2726634 3635512 3746520 4089951 4544390 5453268 6816585 8179902 9088780 10906536 12269853 13633170 16359804 18177560 20449755 24539706 27266340 32719608 40899510 49079412 54532680 61349265 81799020 98158824 122698530 163598040 245397060 490794120