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16042845 = 3572132373
BaseRepresentation
bin111101001100…
…101101011101
31010012001122110
4331030231131
513101332340
61331504233
7253235100
oct75145535
933161573
1016042845
119068255
125458079
133429210
1421b8737
15161d680
hexf4cb5d

16042845 has 96 divisors (see below), whose sum is σ = 34013952. Its totient is φ = 6386688.

The previous prime is 16042811. The next prime is 16042847. The reversal of 16042845 is 54824061.

It is not a de Polignac number, because 16042845 - 210 = 16041821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16042847) 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, 219729 + ... + 219801.

It is an arithmetic number, because the mean of its divisors is an integer number (354312).

Almost surely, 216042845 is an apocalyptic number.

16042845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16042845 is an abundant number, since it is smaller than the sum of its proper divisors (17971107).

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

16042845 is a wasteful number, since it uses less digits than its factorization.

16042845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131 (or 124 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 16042845 is about 4005.3520444525. The cubic root of 16042845 is about 252.2089316664.

The spelling of 16042845 in words is "sixteen million, forty-two thousand, eight hundred forty-five".

Divisors: 1 3 5 7 13 15 21 23 35 39 49 65 69 73 91 105 115 147 161 195 219 245 273 299 345 365 455 483 511 637 735 805 897 949 1095 1127 1365 1495 1533 1679 1911 2093 2415 2555 2847 3185 3381 3577 4485 4745 5037 5635 6279 6643 7665 8395 9555 10465 10731 11753 14235 14651 16905 17885 19929 21827 25185 31395 33215 35259 43953 46501 53655 58765 65481 73255 82271 99645 109135 139503 152789 176295 219765 232505 246813 327405 411355 458367 697515 763945 1069523 1234065 2291835 3208569 5347615 16042845