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1428454829 = 26944311987
BaseRepresentation
bin101010100100100…
…0111110110101101
310200112220000122102
41111021013312231
510411141023304
6353424424445
750253444224
oct12511076655
93615800572
101428454829
1167336428a
1233a478125
13199c32359
14d79dbcbb
1585615d1e
hex55247dad

1428454829 has 8 divisors (see below), whose sum is σ = 1437121440. Its totient is φ = 1419813616.

The previous prime is 1428454793. The next prime is 1428454837. The reversal of 1428454829 is 9284548241.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1428454829 - 216 = 1428389293 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1428454849) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 113174 + ... + 125160.

It is an arithmetic number, because the mean of its divisors is an integer number (179640180).

Almost surely, 21428454829 is an apocalyptic number.

It is an amenable number.

1428454829 is a deficient number, since it is larger than the sum of its proper divisors (8666611).

1428454829 is a wasteful number, since it uses less digits than its factorization.

1428454829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12699.

The product of its digits is 737280, while the sum is 47.

The square root of 1428454829 is about 37794.9048021026. The cubic root of 1428454829 is about 1126.2172382719.

The spelling of 1428454829 in words is "one billion, four hundred twenty-eight million, four hundred fifty-four thousand, eight hundred twenty-nine".

Divisors: 1 269 443 11987 119167 3224503 5310241 1428454829