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381207465 = 3552931349
BaseRepresentation
bin10110101110001…
…100001110101001
3222120022100100000
4112232030032221
51240042114330
6101454333213
712306132012
oct2656141651
9876270300
10381207465
111861aa8a1
12a77ba209
1360c91962
14388b2009
1523700560
hex16b8c3a9

381207465 has 96 divisors (see below), whose sum is σ = 733824000. Its totient is φ = 189423360.

The previous prime is 381207443. The next prime is 381207467. The reversal of 381207465 is 564702183.

It is not a de Polignac number, because 381207465 - 25 = 381207433 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (381207467) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1092111 + ... + 1092459.

It is an arithmetic number, because the mean of its divisors is an integer number (7644000).

Almost surely, 2381207465 is an apocalyptic number.

It is an amenable number.

381207465 is a deficient number, since it is larger than the sum of its proper divisors (352616535).

381207465 is a wasteful number, since it uses less digits than its factorization.

381207465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429 (or 417 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 381207465 is about 19524.5349496473. The cubic root of 381207465 is about 725.0820137106.

The spelling of 381207465 in words is "three hundred eighty-one million, two hundred seven thousand, four hundred sixty-five".

Divisors: 1 3 5 9 15 27 29 31 45 81 87 93 135 145 155 243 261 279 349 405 435 465 783 837 899 1047 1215 1305 1395 1745 2349 2511 2697 3141 3915 4185 4495 5235 7047 7533 8091 9423 10121 10819 11745 12555 13485 15705 24273 28269 30363 32457 35235 37665 40455 47115 50605 54095 72819 84807 91089 97371 121365 141345 151815 162285 218457 273267 292113 313751 364095 424035 455445 486855 819801 876339 941253 1092285 1366335 1460565 1568755 2459403 2629017 2823759 4099005 4381695 4706265 8471277 12297015 13145085 14118795 25413831 42356385 76241493 127069155 381207465