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19080855 = 325424019
BaseRepresentation
bin100100011001…
…0011010010111
31022220102000100
41020302122113
514341041410
61520545143
7321120213
oct110623227
938812010
1019080855
11a852802
1264821b3
133c50c61
142769943
151a1d8c0
hex1232697

19080855 has 12 divisors (see below), whose sum is σ = 33073560. Its totient is φ = 10176432.

The previous prime is 19080847. The next prime is 19080857. The reversal of 19080855 is 55808091.

It is not a de Polignac number, because 19080855 - 23 = 19080847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19080857) 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, 211965 + ... + 212054.

It is an arithmetic number, because the mean of its divisors is an integer number (2756130).

Almost surely, 219080855 is an apocalyptic number.

19080855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

19080855 is a deficient number, since it is larger than the sum of its proper divisors (13992705).

19080855 is a wasteful number, since it uses less digits than its factorization.

19080855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424030 (or 424027 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 36.

The square root of 19080855 is about 4368.1638018737. The cubic root of 19080855 is about 267.2181443256.

The spelling of 19080855 in words is "nineteen million, eighty thousand, eight hundred fifty-five".

Divisors: 1 3 5 9 15 45 424019 1272057 2120095 3816171 6360285 19080855