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43028895 = 35713291087
BaseRepresentation
bin1010010000100…
…1000110011111
32222222002112210
42210021012133
542003411040
64134131503
71031511450
oct244110637
988862483
1043028895
112231a278
12124b0b93
138bb73b0
145a01127
153b9e480
hex290919f

43028895 has 64 divisors (see below), whose sum is σ = 87736320. Its totient is φ = 17515008.

The previous prime is 43028893. The next prime is 43028897. The reversal of 43028895 is 59882034.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (43028893) and next prime (43028897).

It is not a de Polignac number, because 43028895 - 21 = 43028893 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43028893) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 39042 + ... + 40128.

It is an arithmetic number, because the mean of its divisors is an integer number (1370880).

Almost surely, 243028895 is an apocalyptic number.

43028895 is an abundant number, since it is smaller than the sum of its proper divisors (44707425).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

43028895 is a wasteful number, since it uses less digits than its factorization.

43028895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1144.

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 43028895 is about 6559.6413773925. The cubic root of 43028895 is about 350.4182618685.

The spelling of 43028895 in words is "forty-three million, twenty-eight thousand, eight hundred ninety-five".

Divisors: 1 3 5 7 13 15 21 29 35 39 65 87 91 105 145 195 203 273 377 435 455 609 1015 1087 1131 1365 1885 2639 3045 3261 5435 5655 7609 7917 13195 14131 16305 22827 31523 38045 39585 42393 70655 94569 98917 114135 157615 211965 220661 296751 409799 472845 494585 661983 1103305 1229397 1483755 2048995 2868593 3309915 6146985 8605779 14342965 43028895