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140330169 = 3272318209
BaseRepresentation
bin10000101110101…
…00010010111001
3100210001111210200
420113110102321
5241411031134
621531432413
73322533600
oct1027242271
9323044720
10140330169
1172238151
123abb5709
13230c4705
14148cca37
15c4be499
hex85d44b9

140330169 has 18 divisors (see below), whose sum is σ = 235793610. Its totient is φ = 80188416.

The previous prime is 140330147. The next prime is 140330171. The reversal of 140330169 is 961033041.

It can be written as a sum of positive squares in only one way, i.e., 85377600 + 54952569 = 9240^2 + 7413^2 .

It is not a de Polignac number, because 140330169 - 28 = 140329913 is a prime.

It is a super-2 number, since 2×1403301692 = 39385112663137122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (140330119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 158664 + ... + 159545.

It is an arithmetic number, because the mean of its divisors is an integer number (13099645).

Almost surely, 2140330169 is an apocalyptic number.

It is an amenable number.

140330169 is a deficient number, since it is larger than the sum of its proper divisors (95463441).

140330169 is a wasteful number, since it uses less digits than its factorization.

140330169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318229 (or 318219 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 140330169 is about 11846.1035366065. The cubic root of 140330169 is about 519.6572803349.

The spelling of 140330169 in words is "one hundred forty million, three hundred thirty thousand, one hundred sixty-nine".

Divisors: 1 3 7 9 21 49 63 147 441 318209 954627 2227463 2863881 6682389 15592241 20047167 46776723 140330169