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28605614 = 214302807
BaseRepresentation
bin110110100011…
…1110010101110
31222211022112012
41231013302232
524310334424
62501041222
7465100202
oct155076256
958738465
1028605614
1115168904
1296b6212
135c073cb
143b28b02
1527a0b0e
hex1b47cae

28605614 has 4 divisors (see below), whose sum is σ = 42908424. Its totient is φ = 14302806.

The previous prime is 28605613. The next prime is 28605617. The reversal of 28605614 is 41650682.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41650682 = 220825341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28605613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7151402 + ... + 7151405.

It is an arithmetic number, because the mean of its divisors is an integer number (10727106).

Almost surely, 228605614 is an apocalyptic number.

28605614 is a deficient number, since it is larger than the sum of its proper divisors (14302810).

28605614 is a wasteful number, since it uses less digits than its factorization.

28605614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14302809.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 28605614 is about 5348.4216363335. The cubic root of 28605614 is about 305.8325867392.

The spelling of 28605614 in words is "twenty-eight million, six hundred five thousand, six hundred fourteen".

Divisors: 1 2 14302807 28605614