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1430440242 = 2372112319231
BaseRepresentation
bin101010101000010…
…1100100100110010
310200200121220010020
41111100230210302
510412143041432
6353535144310
750306353500
oct12520544462
93620556106
101430440242
1167449aa20
1233b075096
1319a478c5a
14d7d97670
15858a922c
hex5542c932

1430440242 has 96 divisors (see below), whose sum is σ = 3788550144. Its totient is φ = 355370400.

The previous prime is 1430440229. The next prime is 1430440261. The reversal of 1430440242 is 2420440341.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 64767 + ... + 83997.

It is an arithmetic number, because the mean of its divisors is an integer number (39464064).

Almost surely, 21430440242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1430440242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1894275072).

1430440242 is an abundant number, since it is smaller than the sum of its proper divisors (2358109902).

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

1430440242 is a wasteful number, since it uses less digits than its factorization.

1430440242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19284 (or 19277 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 1430440242 is about 37821.1612989342. The cubic root of 1430440242 is about 1126.7387741198.

Adding to 1430440242 its reverse (2420440341), we get a palindrome (3850880583).

Subtracting 1430440242 from its reverse (2420440341), we obtain a palindrome (990000099).

The spelling of 1430440242 in words is "one billion, four hundred thirty million, four hundred forty thousand, two hundred forty-two".

Divisors: 1 2 3 6 7 11 14 21 22 23 33 42 46 49 66 69 77 98 138 147 154 161 231 253 294 322 462 483 506 539 759 966 1078 1127 1518 1617 1771 2254 3234 3381 3542 5313 6762 10626 12397 19231 24794 37191 38462 57693 74382 115386 134617 211541 269234 403851 423082 442313 634623 807702 884626 942319 1269246 1326939 1480787 1884638 2653878 2826957 2961574 3096191 4442361 4865443 5653914 6192382 8884722 9288573 9730886 10365509 14596329 18577146 20731018 21673337 29192658 31096527 34058101 43346674 62193054 65020011 68116202 102174303 130040022 204348606 238406707 476813414 715220121 1430440242