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27306272 = 257139877
BaseRepresentation
bin110100000101…
…0100100100000
31220101022011102
41220022210200
523442300042
62413133532
7451046060
oct150124440
956338142
1027306272
1114460674
12918a2a8
135870b76
1438ab3a0
1525e5b32
hex1a0a920

27306272 has 48 divisors (see below), whose sum is σ = 61951680. Its totient is φ = 11605248.

The previous prime is 27306269. The next prime is 27306277. The reversal of 27306272 is 27260372.

It is not an unprimeable number, because it can be changed into a prime (27306277) 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, 30698 + ... + 31574.

It is an arithmetic number, because the mean of its divisors is an integer number (1290660).

Almost surely, 227306272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27306272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30975840).

27306272 is an abundant number, since it is smaller than the sum of its proper divisors (34645408).

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

27306272 is a wasteful number, since it uses less digits than its factorization.

27306272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1033 (or 1025 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 29.

The square root of 27306272 is about 5225.5403548341. The cubic root of 27306272 is about 301.1300784711.

The spelling of 27306272 in words is "twenty-seven million, three hundred six thousand, two hundred seventy-two".

Divisors: 1 2 4 7 8 14 16 28 32 56 112 139 224 278 556 877 973 1112 1754 1946 2224 3508 3892 4448 6139 7016 7784 12278 14032 15568 24556 28064 31136 49112 98224 121903 196448 243806 487612 853321 975224 1706642 1950448 3413284 3900896 6826568 13653136 27306272