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490474480 = 245171312753
BaseRepresentation
bin11101001111000…
…000101111110000
31021011220200111111
4131033000233300
52001030140410
6120400323104
715103651516
oct3517005760
91234820444
10490474480
11231950811
12118313494
137a7cb4b2
14491d64b6
152d0d5b8a
hex1d3c0bf0

490474480 has 80 divisors (see below), whose sum is σ = 1217091744. Its totient is φ = 183173120.

The previous prime is 490474447. The next prime is 490474487. The reversal of 490474480 is 84474094.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490474487) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 176784 + ... + 179536.

Almost surely, 2490474480 is an apocalyptic number.

490474480 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 490474480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (608545872).

490474480 is an abundant number, since it is smaller than the sum of its proper divisors (726617264).

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

490474480 is a wasteful number, since it uses less digits than its factorization.

490474480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2914 (or 2908 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 490474480 is about 22146.6584386900. The cubic root of 490474480 is about 788.6279018827.

The spelling of 490474480 in words is "four hundred ninety million, four hundred seventy-four thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 16 17 20 34 40 68 80 85 131 136 170 262 272 340 524 655 680 1048 1310 1360 2096 2227 2620 2753 4454 5240 5506 8908 10480 11012 11135 13765 17816 22024 22270 27530 35632 44048 44540 46801 55060 89080 93602 110120 178160 187204 220240 234005 360643 374408 468010 721286 748816 936020 1442572 1803215 1872040 2885144 3606430 3744080 5770288 6130931 7212860 12261862 14425720 24523724 28851440 30654655 49047448 61309310 98094896 122618620 245237240 490474480