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27147930 = 235904931
BaseRepresentation
bin110011110001…
…1111010011010
31220002020221220
41213203322122
523422213210
62405512510
7446516325
oct147437232
956066856
1027147930
1114362707
129112736
135816a84
1438697bc
1525b3c70
hex19e3e9a

27147930 has 16 divisors (see below), whose sum is σ = 65155104. Its totient is φ = 7239440.

The previous prime is 27147919. The next prime is 27147947. The reversal of 27147930 is 3974172.

It is a junction number, because it is equal to n+sod(n) for n = 27147891 and 27147900.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 452436 + ... + 452495.

It is an arithmetic number, because the mean of its divisors is an integer number (4072194).

Almost surely, 227147930 is an apocalyptic number.

27147930 is an abundant number, since it is smaller than the sum of its proper divisors (38007174).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27147930 is a wasteful number, since it uses less digits than its factorization.

27147930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 904941.

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 27147930 is about 5210.3675494153. The cubic root of 27147930 is about 300.5468913160.

The spelling of 27147930 in words is "twenty-seven million, one hundred forty-seven thousand, nine hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 904931 1809862 2714793 4524655 5429586 9049310 13573965 27147930