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19106868 = 22311213159
BaseRepresentation
bin100100011100…
…0110000110100
31022221201200210
41020320300310
514342404433
61521305420
7321256104
oct110706064
938851623
1019106868
11a870300
126495270
133c5ca51
142775204
151a26463
hex1238c34

19106868 has 36 divisors (see below), whose sum is σ = 49007840. Its totient is φ = 5789520.

The previous prime is 19106851. The next prime is 19106869. The reversal of 19106868 is 86860191.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19106869) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5128 + ... + 8031.

Almost surely, 219106868 is an apocalyptic number.

It is an amenable number.

19106868 is an abundant number, since it is smaller than the sum of its proper divisors (29900972).

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

19106868 is a wasteful number, since it uses less digits than its factorization.

19106868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13188 (or 13175 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 39.

The square root of 19106868 is about 4371.1403546443. The cubic root of 19106868 is about 267.3395223445.

It can be divided in two parts, 1910 and 6868, that added together give a palindrome (8778).

The spelling of 19106868 in words is "nineteen million, one hundred six thousand, eight hundred sixty-eight".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 121 132 242 363 484 726 1452 13159 26318 39477 52636 78954 144749 157908 289498 434247 578996 868494 1592239 1736988 3184478 4776717 6368956 9553434 19106868