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27920196 = 22321940819
BaseRepresentation
bin110101010000…
…0011101000100
31221112111022100
41222200131010
524121421241
62434232100
7456213663
oct152403504
957474270
1027920196
111483a947
129425630
135a27435
1439cadda
1526b79b6
hex1aa0744

27920196 has 36 divisors (see below), whose sum is σ = 74292400. Its totient is φ = 8816688.

The previous prime is 27920147. The next prime is 27920227. The reversal of 27920196 is 69102972.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a self number, because there is not a number n which added to its sum of digits gives 27920196.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19726 + ... + 21093.

Almost surely, 227920196 is an apocalyptic number.

It is an amenable number.

27920196 is an abundant number, since it is smaller than the sum of its proper divisors (46372204).

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

27920196 is a wasteful number, since it uses less digits than its factorization.

27920196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40848 (or 40843 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 27920196 is about 5283.9564721901. The cubic root of 27920196 is about 303.3701322609.

The spelling of 27920196 in words is "twenty-seven million, nine hundred twenty thousand, one hundred ninety-six".

Divisors: 1 2 3 4 6 9 12 18 19 36 38 57 76 114 171 228 342 684 40819 81638 122457 163276 244914 367371 489828 734742 775561 1469484 1551122 2326683 3102244 4653366 6980049 9306732 13960098 27920196