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27631030 = 257394729
BaseRepresentation
bin110100101100…
…1110110110110
31220222210122111
41221121312312
524033143110
62424121234
7453600640
oct151316666
956883574
1027631030
1114662669
12930621a
13595592b
143953890
15265be8a
hex1a59db6

27631030 has 16 divisors (see below), whose sum is σ = 56841120. Its totient is φ = 9473472.

The previous prime is 27631003. The next prime is 27631031. The reversal of 27631030 is 3013672.

It is a junction number, because it is equal to n+sod(n) for n = 27630992 and 27631010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27631031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197295 + ... + 197434.

It is an arithmetic number, because the mean of its divisors is an integer number (3552570).

Almost surely, 227631030 is an apocalyptic number.

27631030 is an abundant number, since it is smaller than the sum of its proper divisors (29210090).

27631030 is a wasteful number, since it uses less digits than its factorization.

27631030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394743.

The product of its (nonzero) digits is 756, while the sum is 22.

The square root of 27631030 is about 5256.5226148091. The cubic root of 27631030 is about 302.3191733980.

The spelling of 27631030 in words is "twenty-seven million, six hundred thirty-one thousand, thirty".

Divisors: 1 2 5 7 10 14 35 70 394729 789458 1973645 2763103 3947290 5526206 13815515 27631030