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27485621 = 234129147
BaseRepresentation
bin110100011011…
…0010110110101
31220201102011222
41220312112311
524014014441
62421040125
7452424002
oct150662665
956642158
1027485621
1114573399
129256045
1359046a7
1439168a9
15262dd4b
hex1a365b5

27485621 has 8 divisors (see below), whose sum is σ = 29381184. Its totient is φ = 25648480.

The previous prime is 27485599. The next prime is 27485677. The reversal of 27485621 is 12658472.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-27485621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27485221) 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, 13631 + ... + 15516.

It is an arithmetic number, because the mean of its divisors is an integer number (3672648).

Almost surely, 227485621 is an apocalyptic number.

It is an amenable number.

27485621 is a deficient number, since it is larger than the sum of its proper divisors (1895563).

27485621 is a wasteful number, since it uses less digits than its factorization.

27485621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29211.

The product of its digits is 26880, while the sum is 35.

The square root of 27485621 is about 5242.6730777343. The cubic root of 27485621 is about 301.7879196065.

The spelling of 27485621 in words is "twenty-seven million, four hundred eighty-five thousand, six hundred twenty-one".

Divisors: 1 23 41 943 29147 670381 1195027 27485621