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1430556434 = 21801339709
BaseRepresentation
bin101010101000100…
…1000111100010010
310200200211210111122
41111101020330102
510412210301214
6353541442242
750310346316
oct12521107422
93620753448
101430556434
1167456a24a
1233b110382
1319a4b9ac8
14d7dc7b46
15858cd88e
hex55448f12

1430556434 has 8 divisors (see below), whose sum is σ = 2146007820. Its totient is φ = 715220496.

The previous prime is 1430556433. The next prime is 1430556469. The reversal of 1430556434 is 4346550341.

It can be written as a sum of positive squares in 2 ways, for example, as 1102040809 + 328515625 = 33197^2 + 18125^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1430556394 and 1430556403.

It is not an unprimeable number, because it can be changed into a prime (1430556433) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 16172 + ... + 55880.

Almost surely, 21430556434 is an apocalyptic number.

1430556434 is a deficient number, since it is larger than the sum of its proper divisors (715451386).

1430556434 is a wasteful number, since it uses less digits than its factorization.

1430556434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57724.

The product of its (nonzero) digits is 86400, while the sum is 35.

The square root of 1430556434 is about 37822.6973390318. The cubic root of 1430556434 is about 1126.7692809253.

The spelling of 1430556434 in words is "one billion, four hundred thirty million, five hundred fifty-six thousand, four hundred thirty-four".

Divisors: 1 2 18013 36026 39709 79418 715278217 1430556434