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27745030 = 252774503
BaseRepresentation
bin110100111010…
…1101100000110
31221012121000201
41221311230012
524100320110
62430401114
7454554205
oct151655406
957177021
1027745030
1114730285
12936019a
1359957a1
14398323c
152680b3a
hex1a75b06

27745030 has 8 divisors (see below), whose sum is σ = 49941072. Its totient is φ = 11098008.

The previous prime is 27745021. The next prime is 27745051. The reversal of 27745030 is 3054772.

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

It is a self number, because there is not a number n which added to its sum of digits gives 27745030.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1387242 + ... + 1387261.

It is an arithmetic number, because the mean of its divisors is an integer number (6242634).

Almost surely, 227745030 is an apocalyptic number.

27745030 is a deficient number, since it is larger than the sum of its proper divisors (22196042).

27745030 is a wasteful number, since it uses less digits than its factorization.

27745030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2774510.

The product of its (nonzero) digits is 5880, while the sum is 28.

The square root of 27745030 is about 5267.3551237789. The cubic root of 27745030 is about 302.7343720162.

The spelling of 27745030 in words is "twenty-seven million, seven hundred forty-five thousand, thirty".

Divisors: 1 2 5 10 2774503 5549006 13872515 27745030