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480420642 = 231323281953
BaseRepresentation
bin11100101000101…
…010001100100010
31020110222220020010
4130220222030202
51440441430032
6115401025350
714622336162
oct3450521442
91213886203
10480420642
11227204159
12114a85256
13786bb290
1447b3a5a2
152c29bccc
hex1ca2a322

480420642 has 64 divisors (see below), whose sum is σ = 1084720896. Its totient is φ = 140743680.

The previous prime is 480420613. The next prime is 480420649. The reversal of 480420642 is 246024084.

It is not an unprimeable number, because it can be changed into a prime (480420649) 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, 503638 + ... + 504590.

It is an arithmetic number, because the mean of its divisors is an integer number (16948764).

Almost surely, 2480420642 is an apocalyptic number.

It is a pronic number, being equal to 21918×21919.

It is a practical number, because each smaller number is the sum of distinct divisors of 480420642, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (542360448).

480420642 is an abundant number, since it is smaller than the sum of its proper divisors (604300254).

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

480420642 is a wasteful number, since it uses less digits than its factorization.

480420642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1275.

The product of its (nonzero) digits is 12288, while the sum is 30.

The square root of 480420642 is about 21918.4999942971. The cubic root of 480420642 is about 783.2021778101.

The spelling of 480420642 in words is "four hundred eighty million, four hundred twenty thousand, six hundred forty-two".

Divisors: 1 2 3 6 13 23 26 39 46 69 78 138 281 299 562 598 843 897 953 1686 1794 1906 2859 3653 5718 6463 7306 10959 12389 12926 19389 21918 21919 24778 37167 38778 43838 65757 74334 84019 131514 168038 252057 267793 284947 504114 535586 569894 803379 854841 1606758 1709682 3481309 6159239 6962618 10443927 12318478 18477717 20887854 36955434 80070107 160140214 240210321 480420642