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1420030044 = 2232131353853
BaseRepresentation
bin101010010100011…
…1111000001011100
310122222001000000100
41110220333001130
510402011430134
6352524101100
750122025166
oct12450770134
93588030010
101420030044
1166962a654
12337694790
13198272784
14d6847936
15849ee999
hex54a3f05c

1420030044 has 72 divisors (see below), whose sum is σ = 3631419792. Its totient is φ = 467850240.

The previous prime is 1420030021. The next prime is 1420030069. The reversal of 1420030044 is 4400300241.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1420029999 and 1420030026.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1664322 + ... + 1665174.

It is an arithmetic number, because the mean of its divisors is an integer number (50436386).

Almost surely, 21420030044 is an apocalyptic number.

It is an amenable number.

1420030044 is an abundant number, since it is smaller than the sum of its proper divisors (2211389748).

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

1420030044 is a wasteful number, since it uses less digits than its factorization.

1420030044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1347 (or 1342 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 1420030044 is about 37683.2860032137. The cubic root of 1420030044 is about 1123.9987915962.

Adding to 1420030044 its reverse (4400300241), we get a palindrome (5820330285).

It can be divided in two parts, 14200 and 30044, that added together give a palindrome (44244).

The spelling of 1420030044 in words is "one billion, four hundred twenty million, thirty thousand, forty-four".

Divisors: 1 2 3 4 6 9 12 18 36 131 262 353 393 524 706 786 853 1059 1179 1412 1572 1706 2118 2358 2559 3177 3412 4236 4716 5118 6354 7677 10236 12708 15354 30708 46243 92486 111743 138729 184972 223486 277458 301109 335229 416187 446972 554916 602218 670458 832374 903327 1005687 1204436 1340916 1664748 1806654 2011374 2709981 3613308 4022748 5419962 10839924 39445279 78890558 118335837 157781116 236671674 355007511 473343348 710015022 1420030044