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28650902 = 272046493
BaseRepresentation
bin110110101001…
…0110110010110
31222220121122112
41231102312112
524313312102
62502031022
7465346220
oct155226626
958817575
1028650902
1115199935
129718472
135c21bc7
143b3b410
1527ae252
hex1b52d96

28650902 has 8 divisors (see below), whose sum is σ = 49115856. Its totient is φ = 12278952.

The previous prime is 28650901. The next prime is 28650911. The reversal of 28650902 is 20905682.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28650901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1023233 + ... + 1023260.

It is an arithmetic number, because the mean of its divisors is an integer number (6139482).

Almost surely, 228650902 is an apocalyptic number.

28650902 is a deficient number, since it is larger than the sum of its proper divisors (20464954).

28650902 is a wasteful number, since it uses less digits than its factorization.

28650902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2046502.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 28650902 is about 5352.6537343639. The cubic root of 28650902 is about 305.9938982365.

The spelling of 28650902 in words is "twenty-eight million, six hundred fifty thousand, nine hundred two".

Divisors: 1 2 7 14 2046493 4092986 14325451 28650902