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2042898490 = 25142932
BaseRepresentation
bin111100111000100…
…0010100000111010
312021101001222220001
41321301002200322
513140440222430
6534414223214
7101424231163
oct17161024072
95241058801
102042898490
11959187966
124901b4b0a
13267317299
1415546476a
15be5383ca
hex79c4283a

2042898490 has 12 divisors (see below), whose sum is σ = 3677474574. Its totient is φ = 817102224.

The previous prime is 2042898461. The next prime is 2042898493. The reversal of 2042898490 is 948982402.

It can be written as a sum of positive squares in 3 ways, for example, as 282340809 + 1760557681 = 16803^2 + 41959^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2042898490.

It is not an unprimeable number, because it can be changed into a prime (2042898493) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 135784 + ... + 150076.

Almost surely, 22042898490 is an apocalyptic number.

2042898490 is a deficient number, since it is larger than the sum of its proper divisors (1634576084).

2042898490 is an frugal number, since it uses more digits than its factorization.

2042898490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28593 (or 14300 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 46.

The square root of 2042898490 is about 45198.4345967866. The cubic root of 2042898490 is about 1268.8655192123.

The spelling of 2042898490 in words is "two billion, forty-two million, eight hundred ninety-eight thousand, four hundred ninety".

Divisors: 1 2 5 10 14293 28586 71465 142930 204289849 408579698 1021449245 2042898490