Search a number
-
+
19708212 = 2233474733
BaseRepresentation
bin100101100101…
…1100100110100
31101002021120210
41023023210310
520021130322
61542225420
7326342226
oct113134464
941067523
1019708212
1110141087
126725270
134110684
142890416
151ae470c
hex12cb934

19708212 has 24 divisors (see below), whose sum is σ = 46128096. Its totient is φ = 6549088.

The previous prime is 19708189. The next prime is 19708259. The reversal of 19708212 is 21280791.

It is a self number, because there is not a number n which added to its sum of digits gives 19708212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1798 + ... + 6530.

It is an arithmetic number, because the mean of its divisors is an integer number (1922004).

Almost surely, 219708212 is an apocalyptic number.

19708212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19708212 is an abundant number, since it is smaller than the sum of its proper divisors (26419884).

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

19708212 is a wasteful number, since it uses less digits than its factorization.

19708212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5087 (or 5085 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 19708212 is about 4439.3932017788. The cubic root of 19708212 is about 270.1152320208.

The spelling of 19708212 in words is "nineteen million, seven hundred eight thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 347 694 1041 1388 2082 4164 4733 9466 14199 18932 28398 56796 1642351 3284702 4927053 6569404 9854106 19708212