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485920260 = 2232572371489
BaseRepresentation
bin11100111101101…
…000111000000100
31020212100022021200
4130331220320010
51443343422020
6120114542500
715020153100
oct3475507004
91225308250
10485920260
1122a3200a1
12116897a30
13798955a7
144876c900
152c9d6590
hex1cf68e04

485920260 has 216 divisors, whose sum is σ = 1762127640. Its totient is φ = 107993088.

The previous prime is 485920219. The next prime is 485920261. The reversal of 485920260 is 62029584.

It is a happy number.

485920260 is a `hidden beast` number, since 4 + 8 + 592 + 0 + 2 + 60 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 72692676 + 413227584 = 8526^2 + 20328^2 .

It is a super-2 number, since 2×4859202602 = 472236998156935200, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (485920261) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 325596 + ... + 327084.

Almost surely, 2485920260 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 485920260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (881063820).

485920260 is an abundant number, since it is smaller than the sum of its proper divisors (1276207380).

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

485920260 is a wasteful number, since it uses less digits than its factorization.

485920260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1555 (or 1543 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 485920260 is about 22043.5990709321. The cubic root of 485920260 is about 786.1794163390.

The spelling of 485920260 in words is "four hundred eighty-five million, nine hundred twenty thousand, two hundred sixty".