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1430221032 = 233219864181
BaseRepresentation
bin101010100111111…
…0111000011101000
310200200012202102100
41111033313003220
510412114033112
6353530333400
750304451422
oct12517670350
93620182370
101430221032
11674360259
1233ab8a260
1319a400246
14d7d3b812
15858642dc
hex553f70e8

1430221032 has 24 divisors (see below), whose sum is σ = 3873515490. Its totient is φ = 476740320.

The previous prime is 1430221021. The next prime is 1430221049. The reversal of 1430221032 is 2301220341.

It can be written as a sum of positive squares in only one way, i.e., 1265509476 + 164711556 = 35574^2 + 12834^2 .

It is a tau number, because it is divible by the number of its divisors (24).

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 = 1430220996 and 1430221014.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9932019 + ... + 9932162.

Almost surely, 21430221032 is an apocalyptic number.

1430221032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1430221032 is an abundant number, since it is smaller than the sum of its proper divisors (2443294458).

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

1430221032 is a wasteful number, since it uses less digits than its factorization.

1430221032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19864193 (or 19864186 counting only the distinct ones).

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

The square root of 1430221032 is about 37818.2632070803. The cubic root of 1430221032 is about 1126.6812149112.

Adding to 1430221032 its reverse (2301220341), we get a palindrome (3731441373).

The spelling of 1430221032 in words is "one billion, four hundred thirty million, two hundred twenty-one thousand, thirty-two".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 19864181 39728362 59592543 79456724 119185086 158913448 178777629 238370172 357555258 476740344 715110516 1430221032