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28496037 = 3311312339
BaseRepresentation
bin110110010110…
…1000010100101
31222121202012210
41230231002211
524243333122
62454434033
7464132553
oct154550245
958552183
1028496037
11150a3549
129662919
135b9957b
143adabd3
15277d40c
hex1b2d0a5

28496037 has 16 divisors (see below), whose sum is σ = 39536640. Its totient is φ = 18236400.

The previous prime is 28496023. The next prime is 28496059. The reversal of 28496037 is 73069482.

It is not a de Polignac number, because 28496037 - 210 = 28495013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28495986 and 28496004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28496077) 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, 11014 + ... + 13352.

It is an arithmetic number, because the mean of its divisors is an integer number (2471040).

Almost surely, 228496037 is an apocalyptic number.

It is an amenable number.

28496037 is a deficient number, since it is larger than the sum of its proper divisors (11040603).

28496037 is a wasteful number, since it uses less digits than its factorization.

28496037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2504.

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 28496037 is about 5338.1679441546. The cubic root of 28496037 is about 305.4415784168.

The spelling of 28496037 in words is "twenty-eight million, four hundred ninety-six thousand, thirty-seven".

Divisors: 1 3 31 93 131 393 2339 4061 7017 12183 72509 217527 306409 919227 9498679 28496037