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1001429 = 111347149
BaseRepresentation
bin11110100011111010101
31212212200222
43310133111
5224021204
633244125
711340422
oct3643725
91785628
101001429
11624430
12403645
13290a80
141c0d49
1514babe
hexf47d5

1001429 has 16 divisors (see below), whose sum is σ = 1209600. Its totient is φ = 816960.

The previous prime is 1001411. The next prime is 1001431. The reversal of 1001429 is 9241001.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1001429 - 28 = 1001173 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001459) 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 15 ways as a sum of consecutive naturals, for example, 6647 + ... + 6795.

It is an arithmetic number, because the mean of its divisors is an integer number (75600).

21001429 is an apocalyptic number.

It is an amenable number.

1001429 is a deficient number, since it is larger than the sum of its proper divisors (208171).

1001429 is a wasteful number, since it uses less digits than its factorization.

With its predecessor (1001428) it forms an eRAP, since the sums of their prime factors are consecutive (219 and 220).

1001429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1001429 is about 1000.7142449271. The cubic root of 1001429 is about 100.0476106620.

The spelling of 1001429 in words is "one million, one thousand, four hundred twenty-nine".

Divisors: 1 11 13 47 143 149 517 611 1639 1937 6721 7003 21307 77033 91039 1001429