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1430042020 = 2251123282617
BaseRepresentation
bin101010100111100…
…1011010110100100
310200122212122212021
41111033023112210
510412042321040
6353522432524
750303104501
oct12517132644
93618778767
101430042020
11674248810
1233ab02744
1319a369914
14d7cd24a8
158582b24a
hex553cb5a4

1430042020 has 48 divisors (see below), whose sum is σ = 3418547328. Its totient is φ = 497404160.

The previous prime is 1430042017. The next prime is 1430042051. The reversal of 1430042020 is 202400341.

It is a junction number, because it is equal to n+sod(n) for n = 1430041985 and 1430042003.

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, 136249 + ... + 146368.

It is an arithmetic number, because the mean of its divisors is an integer number (71219736).

Almost surely, 21430042020 is an apocalyptic number.

1430042020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1430042020 is an abundant number, since it is smaller than the sum of its proper divisors (1988505308).

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

1430042020 is a wasteful number, since it uses less digits than its factorization.

1430042020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282660 (or 282658 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 1430042020 is about 37815.8963929192. The cubic root of 1430042020 is about 1126.6342063560.

Adding to 1430042020 its reverse (202400341), we get a palindrome (1632442361).

The spelling of 1430042020 in words is "one billion, four hundred thirty million, forty-two thousand, twenty".

Divisors: 1 2 4 5 10 11 20 22 23 44 46 55 92 110 115 220 230 253 460 506 1012 1265 2530 5060 282617 565234 1130468 1413085 2826170 3108787 5652340 6217574 6500191 12435148 13000382 15543935 26000764 31087870 32500955 62175740 65001910 71502101 130003820 143004202 286008404 357510505 715021010 1430042020