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5386987 = 16333049
BaseRepresentation
bin10100100011001011101011
3101010200120001
4110203023223
52334340422
6311243431
763534334
oct24431353
911120501
105386987
11304a361
121979577
131167c88
14a0328b
15716227
hex5232eb

5386987 has 4 divisors (see below), whose sum is σ = 5420200. Its totient is φ = 5353776.

The previous prime is 5386981. The next prime is 5386993. The reversal of 5386987 is 7896835.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7896835 = 51579367.

It is an interprime number because it is at equal distance from previous prime (5386981) and next prime (5386993).

It is a cyclic number.

It is not a de Polignac number, because 5386987 - 27 = 5386859 is a prime.

It is a Duffinian number.

5386987 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (5386981) 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, 16362 + ... + 16687.

It is an arithmetic number, because the mean of its divisors is an integer number (1355050).

Almost surely, 25386987 is an apocalyptic number.

5386987 is a deficient number, since it is larger than the sum of its proper divisors (33213).

5386987 is a wasteful number, since it uses less digits than its factorization.

5386987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33212.

The product of its digits is 362880, while the sum is 46.

The square root of 5386987 is about 2320.9883670540. The cubic root of 5386987 is about 175.3000241132.

It can be divided in two parts, 53869 and 87, that added together give a triangular number (53956 = T328).

The spelling of 5386987 in words is "five million, three hundred eighty-six thousand, nine hundred eighty-seven".

Divisors: 1 163 33049 5386987