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28096390 = 257596803
BaseRepresentation
bin110101100101…
…1011110000110
31221212110000001
41223023132012
524143041030
62442111514
7460546450
oct153133606
957773001
1028096390
1114950263
1294ab59a
135a896aa
143a352d0
1526eecca
hex1acb786

28096390 has 32 divisors (see below), whose sum is σ = 58786560. Its totient is φ = 9468384.

The previous prime is 28096373. The next prime is 28096391. The reversal of 28096390 is 9369082.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28096391) 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, 729 + ... + 7531.

It is an arithmetic number, because the mean of its divisors is an integer number (1837080).

Almost surely, 228096390 is an apocalyptic number.

28096390 is an abundant number, since it is smaller than the sum of its proper divisors (30690170).

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

28096390 is a wasteful number, since it uses less digits than its factorization.

28096390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6876.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 28096390 is about 5300.6027959092. The cubic root of 28096390 is about 304.0069466903.

The spelling of 28096390 in words is "twenty-eight million, ninety-six thousand, three hundred ninety".

Divisors: 1 2 5 7 10 14 35 59 70 118 295 413 590 826 2065 4130 6803 13606 34015 47621 68030 95242 238105 401377 476210 802754 2006885 2809639 4013770 5619278 14048195 28096390