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28963676 = 2271954443
BaseRepresentation
bin110111001111…
…1001101011100
32000111111200202
41232133031130
524403314201
62512443032
7501121130
oct156371534
960444622
1028963676
1115392925
129849478
136001391
143bbd3c0
152821c6b
hex1b9f35c

28963676 has 24 divisors (see below), whose sum is σ = 60977280. Its totient is φ = 11759472.

The previous prime is 28963673. The next prime is 28963679. The reversal of 28963676 is 67636982.

It is an interprime number because it is at equal distance from previous prime (28963673) and next prime (28963679).

It is a self number, because there is not a number n which added to its sum of digits gives 28963676.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28963673) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26690 + ... + 27753.

It is an arithmetic number, because the mean of its divisors is an integer number (2540720).

Almost surely, 228963676 is an apocalyptic number.

It is an amenable number.

28963676 is an abundant number, since it is smaller than the sum of its proper divisors (32013604).

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

28963676 is a wasteful number, since it uses less digits than its factorization.

28963676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54473 (or 54471 counting only the distinct ones).

The product of its digits is 653184, while the sum is 47.

The square root of 28963676 is about 5381.7911516520. The cubic root of 28963676 is about 307.1033544499.

The spelling of 28963676 in words is "twenty-eight million, nine hundred sixty-three thousand, six hundred seventy-six".

Divisors: 1 2 4 7 14 19 28 38 76 133 266 532 54443 108886 217772 381101 762202 1034417 1524404 2068834 4137668 7240919 14481838 28963676