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1430213220 = 2233519139397
BaseRepresentation
bin101010100111111…
…0101001001100100
310200200012100201000
41111033311021210
510412113310340
6353530233300
750304416562
oct12517651144
93620170630
101430213220
116743553a7
1233ab85830
1319a3c9817
14d7d38a32
1585861d30
hex553f5264

1430213220 has 96 divisors (see below), whose sum is σ = 4683772800. Its totient is φ = 361314432.

The previous prime is 1430213219. The next prime is 1430213237. The reversal of 1430213220 is 223120341.

1430213220 is a `hidden beast` number, since 1 + 430 + 2 + 13 + 220 = 666.

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 = 1430213193 and 1430213202.

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, 59439 + ... + 79958.

It is an arithmetic number, because the mean of its divisors is an integer number (48789300).

Almost surely, 21430213220 is an apocalyptic number.

1430213220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1430213220 is an abundant number, since it is smaller than the sum of its proper divisors (3253559580).

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

1430213220 is a wasteful number, since it uses less digits than its factorization.

1430213220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139434 (or 139426 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1430213220 is about 37818.1599235076. The cubic root of 1430213220 is about 1126.6791635617.

Adding to 1430213220 its reverse (223120341), we get a palindrome (1653333561).

The spelling of 1430213220 in words is "one billion, four hundred thirty million, two hundred thirteen thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 19 20 27 30 36 38 45 54 57 60 76 90 95 108 114 135 171 180 190 228 270 285 342 380 513 540 570 684 855 1026 1140 1710 2052 2565 3420 5130 10260 139397 278794 418191 557588 696985 836382 1254573 1393970 1672764 2090955 2509146 2648543 2787940 3763719 4181910 5018292 5297086 6272865 7527438 7945629 8363820 10594172 12545730 13242715 15054876 15891258 18818595 23836887 25091460 26485430 31782516 37637190 39728145 47673774 52970860 71510661 75274380 79456290 95347548 119184435 143021322 158912580 238368870 286042644 357553305 476737740 715106610 1430213220