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27970416 = 2432194239
BaseRepresentation
bin110101010110…
…0101101110000
31221122001012100
41222230231300
524130023131
62435300400
7456513255
oct152545560
957561170
1027970416
1114874651
12944a700
135a44256
143a0142c
1526c77e6
hex1aacb70

27970416 has 30 divisors (see below), whose sum is σ = 78278720. Its totient is φ = 9323424.

The previous prime is 27970399. The next prime is 27970417. The reversal of 27970416 is 61407972.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27970417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 96976 + ... + 97263.

Almost surely, 227970416 is an apocalyptic number.

It is an amenable number.

27970416 is an abundant number, since it is smaller than the sum of its proper divisors (50308304).

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

27970416 is a wasteful number, since it uses less digits than its factorization.

27970416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194253 (or 194244 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 27970416 is about 5288.7064581049. The cubic root of 27970416 is about 303.5519137286.

The spelling of 27970416 in words is "twenty-seven million, nine hundred seventy thousand, four hundred sixteen".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 36 48 72 144 194239 388478 582717 776956 1165434 1553912 1748151 2330868 3107824 3496302 4661736 6992604 9323472 13985208 27970416