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429980551 = 71113429551
BaseRepresentation
bin11001101000001…
…111101110000111
31002222002021102121
4121220033232013
51340033334201
6110355550411
713440526420
oct3150175607
91088067377
10429980551
11200792830
12bbbbb407
136b10a780
144116a647
1527b369a1
hex19a0fb87

429980551 has 16 divisors (see below), whose sum is σ = 577317888. Its totient is φ = 309276000.

The previous prime is 429980549. The next prime is 429980557. The reversal of 429980551 is 155089924.

It is not a de Polignac number, because 429980551 - 21 = 429980549 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 429980498 and 429980507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (429980557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 213775 + ... + 215776.

It is an arithmetic number, because the mean of its divisors is an integer number (36082368).

Almost surely, 2429980551 is an apocalyptic number.

429980551 is a deficient number, since it is larger than the sum of its proper divisors (147337337).

429980551 is a wasteful number, since it uses less digits than its factorization.

429980551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429582.

The product of its (nonzero) digits is 129600, while the sum is 43.

The square root of 429980551 is about 20735.9723909924. The cubic root of 429980551 is about 754.7728515684.

The spelling of 429980551 in words is "four hundred twenty-nine million, nine hundred eighty thousand, five hundred fifty-one".

Divisors: 1 7 11 13 77 91 143 1001 429551 3006857 4725061 5584163 33075427 39089141 61425793 429980551