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27919996 = 2213536923
BaseRepresentation
bin110101010000…
…0011001111100
31221112111000221
41222200121330
524121414441
62434231124
7456213256
oct152403174
957474027
1027919996
111483a785
1294254a4
135a27310
1439cacd6
1526b78d1
hex1aa067c

27919996 has 12 divisors (see below), whose sum is σ = 52618552. Its totient is φ = 12886128.

The previous prime is 27919981. The next prime is 27920003. The reversal of 27919996 is 69991972.

It is a Harshad number since it is a multiple of its sum of digits (52), and also a Moran number because the ratio is a prime number: 536923 = 27919996 / (2 + 7 + 9 + 1 + 9 + 9 + 9 + 6).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 268410 + ... + 268513.

Almost surely, 227919996 is an apocalyptic number.

27919996 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

27919996 is a deficient number, since it is larger than the sum of its proper divisors (24698556).

27919996 is a wasteful number, since it uses less digits than its factorization.

27919996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536940 (or 536938 counting only the distinct ones).

The product of its digits is 551124, while the sum is 52.

The square root of 27919996 is about 5283.9375469436. The cubic root of 27919996 is about 303.3694078847.

The spelling of 27919996 in words is "twenty-seven million, nine hundred nineteen thousand, nine hundred ninety-six".

Divisors: 1 2 4 13 26 52 536923 1073846 2147692 6979999 13959998 27919996