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27158450 = 252112672
BaseRepresentation
bin110011110011…
…0011110110010
31220002210101112
41213212132302
523423032300
62410033322
7446562104
oct147463662
956083345
1027158450
111436a600
129118842
13581b7b7
14386d574
1525b6e35
hex19e67b2

27158450 has 54 divisors (see below), whose sum is σ = 56365533. Its totient is φ = 9728400.

The previous prime is 27158447. The next prime is 27158459. The reversal of 27158450 is 5485172.

It can be written as a sum of positive squares in 2 ways, for example, as 26615281 + 543169 = 5159^2 + 737^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=3685.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27158459) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 405317 + ... + 405383.

Almost surely, 227158450 is an apocalyptic number.

27158450 is an abundant number, since it is smaller than the sum of its proper divisors (29207083).

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

27158450 is a wasteful number, since it uses less digits than its factorization.

27158450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168 (or 85 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 32.

The square root of 27158450 is about 5211.3769773449. The cubic root of 27158450 is about 300.5857075964.

Multiplying 27158450 by its sum of digits (32), we get a square (869070400 = 294802).

The spelling of 27158450 in words is "twenty-seven million, one hundred fifty-eight thousand, four hundred fifty".

Divisors: 1 2 5 10 11 22 25 50 55 67 110 121 134 242 275 335 550 605 670 737 1210 1474 1675 3025 3350 3685 4489 6050 7370 8107 8978 16214 18425 22445 36850 40535 44890 49379 81070 98758 112225 202675 224450 246895 405350 493790 543169 1086338 1234475 2468950 2715845 5431690 13579225 27158450