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27420680 = 235797931
BaseRepresentation
bin110100010011…
…0100000001000
31220121010002202
41220212200020
524004430210
62415415332
7452033450
oct150464010
956533082
1027420680
1114529621
129224548
1358b0c71
1438dad60
1526199a5
hex1a26808

27420680 has 32 divisors (see below), whose sum is σ = 70511040. Its totient is φ = 9401280.

The previous prime is 27420671. The next prime is 27420703. The reversal of 27420680 is 8602472.

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, 48686 + ... + 49245.

It is an arithmetic number, because the mean of its divisors is an integer number (2203470).

Almost surely, 227420680 is an apocalyptic number.

27420680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27420680 is an abundant number, since it is smaller than the sum of its proper divisors (43090360).

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

27420680 is a wasteful number, since it uses less digits than its factorization.

27420680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97949 (or 97945 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 27420680 is about 5236.4759142003. The cubic root of 27420680 is about 301.5500514159.

The spelling of 27420680 in words is "twenty-seven million, four hundred twenty thousand, six hundred eighty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 97931 195862 391724 489655 685517 783448 979310 1371034 1958620 2742068 3427585 3917240 5484136 6855170 13710340 27420680