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1420004530 = 25720285779
BaseRepresentation
bin101010010100011…
…1000110010110010
310122221222201000101
41110220320302302
510402010121110
6352523343014
750121560620
oct12450706262
93587881011
101420004530
1166961246a
12337681a6a
13198263c89
14d683c510
15849e713a
hex54a38cb2

1420004530 has 16 divisors (see below), whose sum is σ = 2921152320. Its totient is φ = 486858672.

The previous prime is 1420004513. The next prime is 1420004533. The reversal of 1420004530 is 354000241.

It is a junction number, because it is equal to n+sod(n) for n = 1420004498 and 1420004507.

It is not an unprimeable number, because it can be changed into a prime (1420004533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10142820 + ... + 10142959.

It is an arithmetic number, because the mean of its divisors is an integer number (182572020).

Almost surely, 21420004530 is an apocalyptic number.

1420004530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1420004530 is an abundant number, since it is smaller than the sum of its proper divisors (1501147790).

1420004530 is a wasteful number, since it uses less digits than its factorization.

1420004530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20285793.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 1420004530 is about 37682.9474696447. The cubic root of 1420004530 is about 1123.9920598427.

Adding to 1420004530 its reverse (354000241), we get a palindrome (1774004771).

The spelling of 1420004530 in words is "one billion, four hundred twenty million, four thousand, five hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 20285779 40571558 101428895 142000453 202857790 284000906 710002265 1420004530