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27608420 = 2257197203
BaseRepresentation
bin110100101010…
…0010101100100
31220221122122002
41221110111210
524031432140
62423424432
7453445010
oct151242544
956848562
1027608420
1114647684
1292b5118
135948558
143949540
152655415
hex1a54564

27608420 has 24 divisors (see below), whose sum is σ = 66260544. Its totient is φ = 9465696.

The previous prime is 27608419. The next prime is 27608437. The reversal of 27608420 is 2480672.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98462 + ... + 98741.

It is an arithmetic number, because the mean of its divisors is an integer number (2760856).

Almost surely, 227608420 is an apocalyptic number.

27608420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27608420 is an abundant number, since it is smaller than the sum of its proper divisors (38652124).

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

27608420 is a wasteful number, since it uses less digits than its factorization.

27608420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197219 (or 197217 counting only the distinct ones).

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

The square root of 27608420 is about 5254.3715133211. The cubic root of 27608420 is about 302.2366900233.

The spelling of 27608420 in words is "twenty-seven million, six hundred eight thousand, four hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 197203 394406 788812 986015 1380421 1972030 2760842 3944060 5521684 6902105 13804210 27608420