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149160221985 = 351710320812729
BaseRepresentation
bin1000101011101010100…
…1000101110100100001
3112021000020021101000010
42022322221011310201
54420440004100420
6152305005115133
713530220652565
oct2127251056441
9467006241003
10149160221985
1158293069535
1224aa9558aa9
13110b15acaa8
14731002d6a5
153d2eeeb4e0
hex22baa45d21

149160221985 has 64 divisors (see below), whose sum is σ = 255364462080. Its totient is φ = 74082877440.

The previous prime is 149160221971. The next prime is 149160222031. The reversal of 149160221985 is 589122061941.

It is not a de Polignac number, because 149160221985 - 216 = 149160156449 is a prime.

It is a super-2 number, since 2×1491602219852 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 54656101 + ... + 54658829.

It is an arithmetic number, because the mean of its divisors is an integer number (3990069720).

Almost surely, 2149160221985 is an apocalyptic number.

149160221985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

149160221985 is a deficient number, since it is larger than the sum of its proper divisors (106204240095).

149160221985 is a wasteful number, since it uses less digits than its factorization.

149160221985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4938.

The product of its (nonzero) digits is 311040, while the sum is 48.

The spelling of 149160221985 in words is "one hundred forty-nine billion, one hundred sixty million, two hundred twenty-one thousand, nine hundred eighty-five".

Divisors: 1 3 5 15 17 51 85 103 255 309 515 1545 1751 2081 2729 5253 6243 8187 8755 10405 13645 26265 31215 35377 40935 46393 106131 139179 176885 214343 231965 281087 530655 643029 695895 843261 1071715 1405435 3215145 3643831 4216305 4778479 5679049 10931493 14335437 17037147 18219155 23892395 28395245 54657465 71677185 85185735 96543833 289631499 482719165 584942047 1448157495 1754826141 2924710235 8774130705 9944014799 29832044397 49720073995 149160221985