Search a number
-
+
140088871 = 131092907
BaseRepresentation
bin10000101100110…
…01011000100111
3100202121020210201
420112121120213
5241330320441
621522331331
73320510236
oct1026313047
9322536721
10140088871
117209292a
123aab9b47
132303b930
1414868b1d
15c472c31
hex8599627

140088871 has 12 divisors (see below), whose sum is σ = 152429592. Its totient is φ = 127985184.

The previous prime is 140088869. The next prime is 140088887. The reversal of 140088871 is 178880041.

It is not a de Polignac number, because 140088871 - 21 = 140088869 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 140088871.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140083871) 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 11 ways as a sum of consecutive naturals, for example, 154000 + ... + 154906.

It is an arithmetic number, because the mean of its divisors is an integer number (12702466).

Almost surely, 2140088871 is an apocalyptic number.

140088871 is a deficient number, since it is larger than the sum of its proper divisors (12340721).

140088871 is an equidigital number, since it uses as much as digits as its factorization.

140088871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1138 (or 1029 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 37.

The square root of 140088871 is about 11835.9144555881. The cubic root of 140088871 is about 519.3592588836.

The spelling of 140088871 in words is "one hundred forty million, eighty-eight thousand, eight hundred seventy-one".

Divisors: 1 13 109 907 1417 11791 11881 98863 154453 1285219 10776067 140088871