Search a number
-
+
1490019517 = 7271785461
BaseRepresentation
bin101100011001111…
…1110010010111101
310211211201211112001
41120303332102331
511022421111032
6403504142301
751631646140
oct13063762275
93754654461
101490019517
116a5093798
12357007991
131a990956c
14101c66057
158ac273e7
hex58cfe4bd

1490019517 has 8 divisors (see below), whose sum is σ = 1709165312. Its totient is φ = 1272445200.

The previous prime is 1490019493. The next prime is 1490019523. The reversal of 1490019517 is 7159100941.

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

It is a cyclic number.

It is not a de Polignac number, because 1490019517 - 211 = 1490017469 is a prime.

It is a super-3 number, since 3×14900195173 (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1490019317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 390834 + ... + 394627.

It is an arithmetic number, because the mean of its divisors is an integer number (213645664).

Almost surely, 21490019517 is an apocalyptic number.

It is an amenable number.

1490019517 is a deficient number, since it is larger than the sum of its proper divisors (219145795).

1490019517 is an equidigital number, since it uses as much as digits as its factorization.

1490019517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 785739.

The product of its (nonzero) digits is 11340, while the sum is 37.

The square root of 1490019517 is about 38600.7709378971. The cubic root of 1490019517 is about 1142.1697461054.

The spelling of 1490019517 in words is "one billion, four hundred ninety million, nineteen thousand, five hundred seventeen".

Divisors: 1 7 271 1897 785461 5498227 212859931 1490019517