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195830055 = 3551719499
BaseRepresentation
bin10111010110000…
…10000100100111
3111122111012100000
423223002010213
5400113030210
631233152343
74565346051
oct1353020447
9448435300
10195830055
11a05a5023
12556bb6b3
1331757295
141c0188d1
15122d3ac0
hexbac2127

195830055 has 96 divisors (see below), whose sum is σ = 393120000. Its totient is φ = 92938752.

The previous prime is 195830053. The next prime is 195830083. The reversal of 195830055 is 550038591.

It is a happy number.

It is not a de Polignac number, because 195830055 - 21 = 195830053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195830053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 392196 + ... + 392694.

It is an arithmetic number, because the mean of its divisors is an integer number (4095000).

Almost surely, 2195830055 is an apocalyptic number.

195830055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

195830055 is an abundant number, since it is smaller than the sum of its proper divisors (197289945).

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

195830055 is a wasteful number, since it uses less digits than its factorization.

195830055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555 (or 543 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The square root of 195830055 is about 13993.9292194866. The cubic root of 195830055 is about 580.7106380597.

The spelling of 195830055 in words is "one hundred ninety-five million, eight hundred thirty thousand, fifty-five".

Divisors: 1 3 5 9 15 17 19 27 45 51 57 81 85 95 135 153 171 243 255 285 323 405 459 499 513 765 855 969 1215 1377 1497 1539 1615 2295 2495 2565 2907 4131 4491 4617 4845 6885 7485 7695 8483 8721 9481 13473 14535 20655 22455 23085 25449 26163 28443 40419 42415 43605 47405 67365 76347 78489 85329 121257 127245 130815 142215 161177 202095 229041 255987 381735 392445 426645 483531 606285 687123 767961 805885 1145205 1279935 1450593 2061369 2303883 2417655 3435615 3839805 4351779 7252965 10306845 11519415 13055337 21758895 39166011 65276685 195830055