Search a number
-
+
27072388 = 227966871
BaseRepresentation
bin110011101000…
…1011110000100
31212221102100001
41213101132010
523412304023
62404131044
7446053150
oct147213604
955842301
1027072388
1114310982
129096a84
1357bb585
14384a060
15259b6ad
hex19d1784

27072388 has 12 divisors (see below), whose sum is σ = 54144832. Its totient is φ = 11602440.

The previous prime is 27072377. The next prime is 27072389. The reversal of 27072388 is 88327072.

27072388 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27072389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 483408 + ... + 483463.

Almost surely, 227072388 is an apocalyptic number.

27072388 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

27072388 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

27072388 is a wasteful number, since it uses less digits than its factorization.

27072388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 966882 (or 966880 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 27072388 is about 5203.1132987856. The cubic root of 27072388 is about 300.2678644613.

The spelling of 27072388 in words is "twenty-seven million, seventy-two thousand, three hundred eighty-eight".

Divisors: 1 2 4 7 14 28 966871 1933742 3867484 6768097 13536194 27072388