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418980490 = 2541898049
BaseRepresentation
bin11000111110010…
…010001010001010
31002012101102011221
4120332102022022
51324224333430
6105324112254
713245163315
oct3076221212
91065342157
10418980490
111a555a275
12b839568a
1368a58966
143d90597c
1526bb257a
hex18f9228a

418980490 has 8 divisors (see below), whose sum is σ = 754164900. Its totient is φ = 167592192.

The previous prime is 418980481. The next prime is 418980491. The reversal of 418980490 is 94089814.

It can be written as a sum of positive squares in 2 ways, for example, as 418979961 + 529 = 20469^2 + 23^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (418980491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20949015 + ... + 20949034.

Almost surely, 2418980490 is an apocalyptic number.

418980490 is a deficient number, since it is larger than the sum of its proper divisors (335184410).

418980490 is a wasteful number, since it uses less digits than its factorization.

418980490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41898056.

The product of its (nonzero) digits is 82944, while the sum is 43.

The square root of 418980490 is about 20469.0129219755. The cubic root of 418980490 is about 748.2807969472.

The spelling of 418980490 in words is "four hundred eighteen million, nine hundred eighty thousand, four hundred ninety".

Divisors: 1 2 5 10 41898049 83796098 209490245 418980490