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401485460 = 22520074273
BaseRepresentation
bin10111111011100…
…010111010010100
31000222110120111212
4113323202322110
51310240013320
6103501120552
712643366355
oct2773427224
91028416455
10401485460
1119669aa72
12b2559158
136524177c
143b46dd2c
15253a89c5
hex17ee2e94

401485460 has 12 divisors (see below), whose sum is σ = 843119508. Its totient is φ = 160594176.

The previous prime is 401485439. The next prime is 401485499. The reversal of 401485460 is 64584104.

It can be written as a sum of positive squares in 2 ways, for example, as 269419396 + 132066064 = 16414^2 + 11492^2 .

It is a super-2 number, since 2×4014854602 = 322381149182823200, which contains 22 as substring.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10037117 + ... + 10037156.

It is an arithmetic number, because the mean of its divisors is an integer number (70259959).

Almost surely, 2401485460 is an apocalyptic number.

It is an amenable number.

401485460 is an abundant number, since it is smaller than the sum of its proper divisors (441634048).

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

401485460 is a wasteful number, since it uses less digits than its factorization.

401485460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20074282 (or 20074280 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 401485460 is about 20037.1020858806. The cubic root of 401485460 is about 737.7172532411.

The spelling of 401485460 in words is "four hundred one million, four hundred eighty-five thousand, four hundred sixty".

Divisors: 1 2 4 5 10 20 20074273 40148546 80297092 100371365 200742730 401485460