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193392045 = 32571155813
BaseRepresentation
bin10111000011011…
…10110110101101
3111110220100000100
423201232312231
5344002021140
631105021313
74535543130
oct1341566655
9443810010
10193392045
119a18a340
1254924839
13310b2682
141b982217
1511ea1530
hexb86edad

193392045 has 48 divisors (see below), whose sum is σ = 417935232. Its totient is φ = 80369280.

The previous prime is 193392041. The next prime is 193392091. The reversal of 193392045 is 540293391.

It is a happy number.

It is not a de Polignac number, because 193392045 - 22 = 193392041 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (193392041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 24442 + ... + 31371.

It is an arithmetic number, because the mean of its divisors is an integer number (8706984).

Almost surely, 2193392045 is an apocalyptic number.

193392045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

193392045 is an abundant number, since it is smaller than the sum of its proper divisors (224543187).

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

193392045 is a wasteful number, since it uses less digits than its factorization.

193392045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55842 (or 55839 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The square root of 193392045 is about 13906.5468395285. The cubic root of 193392045 is about 578.2906918115.

The spelling of 193392045 in words is "one hundred ninety-three million, three hundred ninety-two thousand, forty-five".

Divisors: 1 3 5 7 9 11 15 21 33 35 45 55 63 77 99 105 165 231 315 385 495 693 1155 3465 55813 167439 279065 390691 502317 613943 837195 1172073 1841829 1953455 2511585 3069715 3516219 4297601 5525487 5860365 9209145 12892803 17581095 21488005 27627435 38678409 64464015 193392045