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1428530570 = 25178403121
BaseRepresentation
bin101010100100101…
…1010010110001010
310200120000212112122
41111021122112022
510411200434240
6353430211242
750254211105
oct12511322612
93616025478
101428530570
11673406185
1233a4b3b22
13199c5a97c
14d7a1b73c
158562d4b5
hex5525a58a

1428530570 has 16 divisors (see below), whose sum is σ = 2722611528. Its totient is φ = 537799680.

The previous prime is 1428530507. The next prime is 1428530603. The reversal of 1428530570 is 750358241.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1032401161 + 396129409 = 32131^2 + 19903^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1428530570.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4201391 + ... + 4201730.

Almost surely, 21428530570 is an apocalyptic number.

1428530570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1428530570 is a deficient number, since it is larger than the sum of its proper divisors (1294080958).

1428530570 is a wasteful number, since it uses less digits than its factorization.

1428530570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8403145.

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 1428530570 is about 37795.9067889633. The cubic root of 1428530570 is about 1126.2371430694.

The spelling of 1428530570 in words is "one billion, four hundred twenty-eight million, five hundred thirty thousand, five hundred seventy".

Divisors: 1 2 5 10 17 34 85 170 8403121 16806242 42015605 84031210 142853057 285706114 714265285 1428530570