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140155041 = 31312728297
BaseRepresentation
bin10000101101010…
…01100010100001
3100202201121120110
420112221202201
5241334430131
621524001533
73321204165
oct1026514241
9322647513
10140155041
1172128614
123ab302a9
1323062aa0
1414884ca5
15c487646
hex85a98a1

140155041 has 16 divisors (see below), whose sum is σ = 202840064. Its totient is φ = 85567104.

The previous prime is 140155019. The next prime is 140155049. The reversal of 140155041 is 140551041.

It is not a de Polignac number, because 140155041 - 26 = 140154977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 140154999 and 140155017.

It is not an unprimeable number, because it can be changed into a prime (140155049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9196 + ... + 19101.

It is an arithmetic number, because the mean of its divisors is an integer number (12677504).

Almost surely, 2140155041 is an apocalyptic number.

It is an amenable number.

140155041 is a deficient number, since it is larger than the sum of its proper divisors (62685023).

140155041 is a wasteful number, since it uses less digits than its factorization.

140155041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28440.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 140155041 is about 11838.7094313527. The cubic root of 140155041 is about 519.4410179186.

The spelling of 140155041 in words is "one hundred forty million, one hundred fifty-five thousand, forty-one".

Divisors: 1 3 13 39 127 381 1651 4953 28297 84891 367861 1103583 3593719 10781157 46718347 140155041