Search a number
-
+
1430002020 = 223583287149
BaseRepresentation
bin101010100111100…
…0001100101100100
310200122210121222210
41111033001211210
510412040031040
6353521523420
750302550046
oct12517014544
93618717883
101430002020
11674220757
1233aaa3570
1319a354655
14d7cc1a96
158581e480
hex553c1964

1430002020 has 48 divisors (see below), whose sum is σ = 4052260800. Its totient is φ = 376738176.

The previous prime is 1430002019. The next prime is 1430002031. The reversal of 1430002020 is 202000341.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1430001987 and 1430002005.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138595 + ... + 148554.

It is an arithmetic number, because the mean of its divisors is an integer number (84422100).

Almost surely, 21430002020 is an apocalyptic number.

1430002020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1430002020 is an abundant number, since it is smaller than the sum of its proper divisors (2622258780).

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

1430002020 is a wasteful number, since it uses less digits than its factorization.

1430002020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287244 (or 287242 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 1430002020 is about 37815.3675111059. The cubic root of 1430002020 is about 1126.6237018189.

Adding to 1430002020 its reverse (202000341), we get a palindrome (1632002361).

The spelling of 1430002020 in words is "one billion, four hundred thirty million, two thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 83 166 249 332 415 498 830 996 1245 1660 2490 4980 287149 574298 861447 1148596 1435745 1722894 2871490 3445788 4307235 5742980 8614470 17228940 23833367 47666734 71500101 95333468 119166835 143000202 238333670 286000404 357500505 476667340 715001010 1430002020