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1430401420 = 225717738233
BaseRepresentation
bin101010101000010…
…0011000110001100
310200200112220212101
41111100203012030
510412140321140
6353534244444
750306132350
oct12520430614
93620486771
101430401420
11674473838
1233b056724
1319a464396
14d7d87460
158589c99a
hex5542318c

1430401420 has 96 divisors (see below), whose sum is σ = 3685143168. Its totient is φ = 455196672.

The previous prime is 1430401397. The next prime is 1430401439. The reversal of 1430401420 is 241040341.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 169624 + ... + 177856.

It is an arithmetic number, because the mean of its divisors is an integer number (38386908).

Almost surely, 21430401420 is an apocalyptic number.

1430401420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1430401420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1842571584).

1430401420 is an abundant number, since it is smaller than the sum of its proper divisors (2254741748).

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

1430401420 is a wasteful number, since it uses less digits than its factorization.

1430401420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8339 (or 8337 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1430401420 is about 37820.6480642519. The cubic root of 1430401420 is about 1126.7285808363.

Adding to 1430401420 its reverse (241040341), we get a palindrome (1671441761).

The spelling of 1430401420 in words is "one billion, four hundred thirty million, four hundred one thousand, four hundred twenty".

Divisors: 1 2 4 5 7 10 14 17 20 28 34 35 68 70 73 85 119 140 146 170 238 292 340 365 476 511 595 730 1022 1190 1241 1460 2044 2380 2482 2555 4964 5110 6205 8233 8687 10220 12410 16466 17374 24820 32932 34748 41165 43435 57631 82330 86870 115262 139961 164660 173740 230524 279922 288155 559844 576310 601009 699805 979727 1152620 1202018 1399610 1959454 2404036 2799220 3005045 3918908 4207063 4898635 6010090 8414126 9797270 10217153 12020180 16828252 19594540 20434306 21035315 40868612 42070630 51085765 71520071 84141260 102171530 143040142 204343060 286080284 357600355 715200710 1430401420