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380730045 = 35172711237
BaseRepresentation
bin10110101100010…
…111101010111101
3222112102002102210
4112230113222331
51234431330140
6101440211033
712302103063
oct2654275275
9875362383
10380730045
11185a04133
12a7609a79
1360b55567
14387ca033
1523658d80
hex16b17abd

380730045 has 48 divisors (see below), whose sum is σ = 656754048. Its totient is φ = 188267520.

The previous prime is 380730043. The next prime is 380730083. The reversal of 380730045 is 540037083.

It is not a de Polignac number, because 380730045 - 21 = 380730043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 380729994 and 380730021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380730043) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 307167 + ... + 308403.

It is an arithmetic number, because the mean of its divisors is an integer number (13682376).

Almost surely, 2380730045 is an apocalyptic number.

It is an amenable number.

380730045 is a deficient number, since it is larger than the sum of its proper divisors (276024003).

380730045 is a wasteful number, since it uses less digits than its factorization.

380730045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1350 (or 1333 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 380730045 is about 19512.3049637914. The cubic root of 380730045 is about 724.7791923687.

The spelling of 380730045 in words is "three hundred eighty million, seven hundred thirty thousand, forty-five".

Divisors: 1 3 5 15 17 51 71 85 213 255 289 355 867 1065 1207 1237 1445 3621 3711 4335 6035 6185 18105 18555 20519 21029 61557 63087 87827 102595 105145 263481 307785 315435 357493 439135 1072479 1317405 1493059 1787465 4479177 5362395 7465295 22395885 25382003 76146009 126910015 380730045