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428767973 = 15114891907
BaseRepresentation
bin11001100011100…
…111101011100101
31002212210200002022
4121203213223211
51334231033343
6110313552525
713424316254
oct3143475345
91085720068
10428767973
112000347a7
12bb715745
136aaa487a
1440d3279b
1527997568
hex198e7ae5

428767973 has 8 divisors (see below), whose sum is σ = 432123840. Its totient is φ = 425419200.

The previous prime is 428767967. The next prime is 428767979. The reversal of 428767973 is 379767824.

It is an interprime number because it is at equal distance from previous prime (428767967) and next prime (428767979).

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 428767973 - 218 = 428505829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428767979) 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, 223886 + ... + 225792.

It is an arithmetic number, because the mean of its divisors is an integer number (54015480).

Almost surely, 2428767973 is an apocalyptic number.

It is an amenable number.

428767973 is a deficient number, since it is larger than the sum of its proper divisors (3355867).

428767973 is a wasteful number, since it uses less digits than its factorization.

428767973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3547.

The product of its digits is 3556224, while the sum is 53.

The square root of 428767973 is about 20706.7132350839. The cubic root of 428767973 is about 754.0626778686.

The spelling of 428767973 in words is "four hundred twenty-eight million, seven hundred sixty-seven thousand, nine hundred seventy-three".

Divisors: 1 151 1489 1907 224839 287957 2839523 428767973