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28648035 = 3251323767
BaseRepresentation
bin110110101001…
…0001001100011
31222220110201100
41231102021203
524313214120
62502005443
7465334653
oct155221143
958813640
1028648035
1115197769
129716883
135c20800
143b3a363
1527ad490
hex1b52263

28648035 has 36 divisors (see below), whose sum is σ = 53784432. Its totient is φ = 14099904.

The previous prime is 28648013. The next prime is 28648057. The reversal of 28648035 is 53084682.

28648035 is a `hidden beast` number, since 2 + 8 + 648 + 0 + 3 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (28648013) and next prime (28648057).

It is not a de Polignac number, because 28648035 - 28 = 28647779 is a prime.

It is a super-2 number, since 2×286480352 = 1641419818722450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5722 + ... + 9488.

It is an arithmetic number, because the mean of its divisors is an integer number (1494012).

Almost surely, 228648035 is an apocalyptic number.

28648035 is a deficient number, since it is larger than the sum of its proper divisors (25136397).

28648035 is a wasteful number, since it uses less digits than its factorization.

28648035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3804 (or 3788 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 28648035 is about 5352.3859165796. The cubic root of 28648035 is about 305.9836913005.

The spelling of 28648035 in words is "twenty-eight million, six hundred forty-eight thousand, thirty-five".

Divisors: 1 3 5 9 13 15 39 45 65 117 169 195 507 585 845 1521 2535 3767 7605 11301 18835 33903 48971 56505 146913 169515 244855 440739 636623 734565 1909869 2203695 3183115 5729607 9549345 28648035